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Formula
Solve the system of equations
Answer
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Graph
$x + 2 y = 2$
$2 x - 3 y = 4$
$x$-intercept
$\left ( 2 , 0 \right )$
$y$-intercept
$\left ( 0 , 1 \right )$
$x$-intercept
$\left ( 2 , 0 \right )$
$y$-intercept
$\left ( 0 , - \dfrac { 4 } { 3 } \right )$
$\begin{cases} x+2y = 2 \\2x-3y = 4 \end{cases}$
$x = 2 , y = 0$
Solve quadratic equations using the square root
$\begin{cases} x + 2 y = 2 \\ 2 x - 3 y = 4 \end{cases}$
$ $ Solve a solution to $ x$
$\begin{cases} \color{#FF6800}{ x } = \color{#FF6800}{ - } \color{#FF6800}{ 2 } \color{#FF6800}{ y } \color{#FF6800}{ + } \color{#FF6800}{ 2 } \\ 2 x - 3 y = 4 \end{cases}$
$\begin{cases} \color{#FF6800}{ x } = \color{#FF6800}{ - } \color{#FF6800}{ 2 } \color{#FF6800}{ y } \color{#FF6800}{ + } \color{#FF6800}{ 2 } \\ \color{#FF6800}{ 2 } \color{#FF6800}{ x } \color{#FF6800}{ - } \color{#FF6800}{ 3 } \color{#FF6800}{ y } = \color{#FF6800}{ 4 } \end{cases}$
$ $ Substitute the given $ x $ value into the equation $ 2 x - 3 y = 4$
$\color{#FF6800}{ 2 } \left ( \color{#FF6800}{ - } \color{#FF6800}{ 2 } \color{#FF6800}{ y } \color{#FF6800}{ + } \color{#FF6800}{ 2 } \right ) \color{#FF6800}{ - } \color{#FF6800}{ 3 } \color{#FF6800}{ y } = \color{#FF6800}{ 4 }$
$\color{#FF6800}{ 2 } \left ( \color{#FF6800}{ - } \color{#FF6800}{ 2 } \color{#FF6800}{ y } \color{#FF6800}{ + } \color{#FF6800}{ 2 } \right ) \color{#FF6800}{ - } \color{#FF6800}{ 3 } \color{#FF6800}{ y } = \color{#FF6800}{ 4 }$
$ $ Solve a solution to $ y$
$\color{#FF6800}{ y } = \color{#FF6800}{ 0 }$
$\color{#FF6800}{ y } = \color{#FF6800}{ 0 }$
$ $ Substitute the given $ y $ value into the equation $ x = - 2 y + 2$
$\color{#FF6800}{ x } = \color{#FF6800}{ - } \color{#FF6800}{ 2 } \color{#FF6800}{ \times } \color{#FF6800}{ 0 } \color{#FF6800}{ + } \color{#FF6800}{ 2 }$
$\color{#FF6800}{ x } = \color{#FF6800}{ - } \color{#FF6800}{ 2 } \color{#FF6800}{ \times } \color{#FF6800}{ 0 } \color{#FF6800}{ + } \color{#FF6800}{ 2 }$
$ $ Organize the expression $ $
$\color{#FF6800}{ x } = \color{#FF6800}{ 2 }$
$\color{#FF6800}{ x } = \color{#FF6800}{ 2 }$
$ $ The possible solutions are as follows $ $
$\color{#FF6800}{ x } = \color{#FF6800}{ 2 } , \color{#FF6800}{ y } = \color{#FF6800}{ 0 }$
$\color{#FF6800}{ x } = \color{#FF6800}{ 2 } , \color{#FF6800}{ y } = \color{#FF6800}{ 0 }$
$ $ Check if it is the solution to the system of equations $ $
$\begin{cases} \color{#FF6800}{ 2 } \color{#FF6800}{ + } \color{#FF6800}{ 2 } \color{#FF6800}{ \times } \color{#FF6800}{ 0 } = \color{#FF6800}{ 2 } \\ \color{#FF6800}{ 2 } \color{#FF6800}{ \times } \color{#FF6800}{ 2 } \color{#FF6800}{ - } \color{#FF6800}{ 3 } \color{#FF6800}{ \times } \color{#FF6800}{ 0 } = \color{#FF6800}{ 4 } \end{cases}$
$\begin{cases} \color{#FF6800}{ 2 } \color{#FF6800}{ + } \color{#FF6800}{ 2 } \color{#FF6800}{ \times } \color{#FF6800}{ 0 } = \color{#FF6800}{ 2 } \\ \color{#FF6800}{ 2 } \color{#FF6800}{ \times } \color{#FF6800}{ 2 } \color{#FF6800}{ - } \color{#FF6800}{ 3 } \color{#FF6800}{ \times } \color{#FF6800}{ 0 } = \color{#FF6800}{ 4 } \end{cases}$
$ $ Simplify the equality $ $
$\begin{cases} \color{#FF6800}{ 2 } = \color{#FF6800}{ 2 } \\ \color{#FF6800}{ 4 } = \color{#FF6800}{ 4 } \end{cases}$
$\begin{cases} \color{#FF6800}{ 2 } = \color{#FF6800}{ 2 } \\ \color{#FF6800}{ 4 } = \color{#FF6800}{ 4 } \end{cases}$
$ $ Since it is true in both equations, it is the solution of the system of equations $ $
$\color{#FF6800}{ x } = \color{#FF6800}{ 2 } , \color{#FF6800}{ y } = \color{#FF6800}{ 0 }$
$\begin{cases} x = 2 \\ y = 0 \end{cases}$
Solve quadratic equations using the square root
$\begin{cases} \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 2 } \color{#FF6800}{ y } = \color{#FF6800}{ 2 } \\ \color{#FF6800}{ 2 } \color{#FF6800}{ x } \color{#FF6800}{ - } \color{#FF6800}{ 3 } \color{#FF6800}{ y } = \color{#FF6800}{ 4 } \end{cases}$
$ $ Solve the system of linear equations for $ x , y $
$\begin{cases} \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 2 } \color{#FF6800}{ y } = \color{#FF6800}{ 2 } \\ \color{#FF6800}{ - } \color{#FF6800}{ 7 } \color{#FF6800}{ y } = \color{#FF6800}{ 0 } \end{cases}$
$\begin{cases} \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 2 } \color{#FF6800}{ y } = \color{#FF6800}{ 2 } \\ \color{#FF6800}{ - } \color{#FF6800}{ 7 } \color{#FF6800}{ y } = \color{#FF6800}{ 0 } \end{cases}$
$ $ Solve the system of linear equations for $ x , y $
$\begin{cases} \color{#FF6800}{ - } \color{#FF6800}{ 7 } \color{#FF6800}{ x } = \color{#FF6800}{ - } \color{#FF6800}{ 14 } \\ \color{#FF6800}{ - } \color{#FF6800}{ 7 } \color{#FF6800}{ y } = \color{#FF6800}{ 0 } \end{cases}$
$\begin{cases} \color{#FF6800}{ - } \color{#FF6800}{ 7 } \color{#FF6800}{ x } = \color{#FF6800}{ - } \color{#FF6800}{ 14 } \\ - 7 y = 0 \end{cases}$
$ $ Solve a solution to $ x$
$\begin{cases} \color{#FF6800}{ x } = \color{#FF6800}{ 2 } \\ - 7 y = 0 \end{cases}$
$\begin{cases} x = 2 \\ \color{#FF6800}{ - } \color{#FF6800}{ 7 } \color{#FF6800}{ y } = \color{#FF6800}{ 0 } \end{cases}$
$ $ Solve a solution to $ y$
$\begin{cases} x = 2 \\ \color{#FF6800}{ y } = \color{#FF6800}{ 0 } \end{cases}$
$ $ 그래프 보기 $ $
Graph
Solution search results
search-thumbnail-$1$ $ \begin{cases} 4x-3y=4 \\ 2x+y=2 \end{cases} $ $2$ $ \begin{cases} x+2y=4 \\ -2x-4y=4 \end{cases} $
7th-9th grade
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