### Home > CCA > Chapter 4 > Lesson 4.3.1 > Problem4-114

4-114.

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

1. Solve for $x : 2 x + 22 = 12$

• 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 $y : 2 x - y = 3$

• 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. $y:\ 6x+2y=10$

• y = 5 − 3x