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4-9.

Write the equation represented by the diagram at right. Explore using the    4-9 HW eTool (CPM). Homework Help ✎

1. Simplify as much as possible and then solve for $x$.

Combine like terms

Move the variable to one side of the equation.

$1+(−3)+2x=(−x)+(−3)+(−2)+(−x)$

$−2+2x=−2x+(−5)$

$−2+2x=−2x+(−5)$
$+2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ +2$

$2x=−2x+(−3)$

$2x=−2x+(−3)$
$+2\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ +2$

$4x=−3$

$x=−0.75$

$1+(−3)−(−2x)=(−x)+(−3)−2−(x)$