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Formula
Solve the equation
Answer
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Graph
$y = 2 x - 27.8$
$y = 27.6$
$x$Intercept
$\left ( \dfrac { 139 } { 10 } , 0 \right )$
$y$Intercept
$\left ( 0 , - \dfrac { 139 } { 5 } \right )$
$2x-27.8 = 27.6$
$x = \dfrac { 277 } { 10 }$
$ $ Solve a solution to $ x$
$2 x \color{#FF6800}{ - } \color{#FF6800}{ 27.8 } = 27.6$
$ $ Convert decimals to fractions $ $
$2 x \color{#FF6800}{ - } \color{#FF6800}{ \dfrac { 139 } { 5 } } = 27.6$
$2 x - \dfrac { 139 } { 5 } = \color{#FF6800}{ 27.6 }$
$ $ Convert decimals to fractions $ $
$2 x - \dfrac { 139 } { 5 } = \color{#FF6800}{ \dfrac { 138 } { 5 } }$
$2 x \color{#FF6800}{ - } \color{#FF6800}{ \dfrac { 139 } { 5 } } = \dfrac { 138 } { 5 }$
$ $ Move the constant to the right side and change the sign $ $
$2 x = \color{#FF6800}{ \dfrac { 138 } { 5 } } \color{#FF6800}{ + } \color{#FF6800}{ \dfrac { 139 } { 5 } }$
$2 x = \color{#FF6800}{ \dfrac { 138 } { 5 } } \color{#FF6800}{ + } \color{#FF6800}{ \dfrac { 139 } { 5 } }$
$ $ Find the sum of the fractions $ $
$2 x = \color{#FF6800}{ \dfrac { 277 } { 5 } }$
$\color{#FF6800}{ 2 } \color{#FF6800}{ x } = \color{#FF6800}{ \dfrac { 277 } { 5 } }$
$ $ Divide both sides by the same number $ $
$\color{#FF6800}{ x } = \color{#FF6800}{ \dfrac { 277 } { 10 } }$
$ $ 그래프 보기 $ $
Graph
Solution search results
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$9.8x$ $-13.8=$ $27-\dfrac {1} {5}^{x}$
7th-9th grade
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