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Formula
Solve the equation
Graph
$x + 2 y = 16$
$x$Intercept
$\left ( 16 , 0 \right )$
$y$Intercept
$\left ( 0 , 8 \right )$
$x+2y = 16$
$x = - 2 y + 16$
 Solve a solution to $x$
$x \color{#FF6800}{ + } \color{#FF6800}{ 2 } \color{#FF6800}{ y } = 16$
 Move the rest of the expression except $x$ term to the right side and replace the sign 
$x = 16 \color{#FF6800}{ - } \left ( \color{#FF6800}{ 2 } \color{#FF6800}{ y } \right )$
$x = \color{#FF6800}{ 16 } \color{#FF6800}{ - } \left ( \color{#FF6800}{ 2 } \color{#FF6800}{ y } \right )$
 Organize the expression 
$x = \color{#FF6800}{ - } \color{#FF6800}{ 2 } \color{#FF6800}{ y } \color{#FF6800}{ + } \color{#FF6800}{ 16 }$
$y = - \dfrac { 1 } { 2 } x + 8$
 Solve a solution to $y$
$\color{#FF6800}{ x } + 2 y = 16$
 Move the rest of the expression except $y$ term to the right side and replace the sign 
$2 y = 16 \color{#FF6800}{ - } \color{#FF6800}{ x }$
$2 y = \color{#FF6800}{ 16 } \color{#FF6800}{ - } \color{#FF6800}{ x }$
 Organize the expression 
$2 y = \color{#FF6800}{ - } \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 16 }$
$\color{#FF6800}{ 2 } \color{#FF6800}{ y } = \color{#FF6800}{ - } \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 16 }$
 Divide both sides by the same number 
$\color{#FF6800}{ y } = \left ( \color{#FF6800}{ - } \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 16 } \right ) \color{#FF6800}{ \div } \color{#FF6800}{ 2 }$
$y = \left ( - x + 16 \right ) \color{#FF6800}{ \div } \color{#FF6800}{ 2 }$
 Convert division to multiplication 
$y = \left ( - x + 16 \right ) \color{#FF6800}{ \times } \color{#FF6800}{ \dfrac { 1 } { 2 } }$
$y = \left ( \color{#FF6800}{ - } \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 16 } \right ) \color{#FF6800}{ \times } \color{#FF6800}{ \dfrac { 1 } { 2 } }$
 Multiply each term in parentheses by $\dfrac { 1 } { 2 }$
$y = \color{#FF6800}{ - } \color{#FF6800}{ \dfrac { 1 } { 2 } } \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ 16 } \color{#FF6800}{ \times } \color{#FF6800}{ \dfrac { 1 } { 2 } }$
$y = - \dfrac { 1 } { 2 } x + \color{#FF6800}{ 16 } \color{#FF6800}{ \times } \color{#FF6800}{ \dfrac { 1 } { 2 } }$
 Calculate the product of rational numbers 
$y = - \dfrac { 1 } { 2 } x + \color{#FF6800}{ 8 }$
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Linear function
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