### Home > GB8I > Chapter 6 Unit 7 > Lesson INT1: 6.2.3 > Problem6-78

6-78.

Serena wanted to examine the graphs of the equations below on her graphing calculator. Rewrite each of the equations in $y =$ form (when the equation is solved for $y$) so that she can enter them into the calculator.  (Desmos).

1. $5 - ( y - 2 ) = 3 x$

Subtract $5$ from both sides of the equation.

$−(y − 2) = 3x − 5$

Multiply both sides by $−1$.

$y − 2 = −3x + 5$

Now finish solving for $y$ by adding $2$ to both sides.

$y = −3x + 7$

1. $5 ( x + y ) = - 2$

Multiply $(x + y)$ by $5$.

Use the eTool below to view the graphs of the equations.
Click on the link at right for the full eTool version: (Desmos)