Home > CCAA8 > Chapter 4 Unit 5 > Lesson CCA: 4.3.1 > Problem4-114

4-114.

Solve each equation below for the indicated variable, if possible. Show all steps.

1. Solve for $x$$2x+22=12$

• Solve by isolating the variable on one side of the equation by subtracting $22$ from both sides.
$2x=12−22$
$2x=−10$

• $x=−5$

1. Solve for $y$$2x-y=3$

• Solve by isolating $y$ on one side of the equation, and then simplify as much as possible.
$2x=y+3$
Subtract $3$ from both sides.

• $2x−3=y$

1. Solve for $x$$2x+15=2x-15$

• Use the same strategy shown in parts (a) and (b) to solve parts (c) and (d).

1. Solve for $y$$6x+2y=10$

$y=5−3x$