Solve two-step equations

Key Notes:

To solve for a variable, use inverse operations to undo the operations in the equation. Be sure to do the same operation to both sides of the equation.

Learn with an example

Solve for c.

2c − 2 = 6

c = _______

Solve.

2c − 2 = 6

2c − 2 + 2 = 6 + 2 Add 2 to both sides

2c = 8 Simplify

2C/2 = 8/2 Divide both sides by 2

c = 4 Simplify

Solve for y.

2y − 7 = 1

y = ——-

Solve.

2y − 7 = 1
2y − 7 + 7 = 1 + 7 Add 7 to both sides
2y = 8 Simplify

2y/2=8/2 Divide both sides by 2
y = 4 Simplify

Solve for w.

5 + 2w = 9

w = ——–

Solve.

5 + 2w = 9
5 + 2w − 5 = 9 − 5 Subtract 5 from both sides
2w = 4 Simplify

2w/2=4/2 Divide both sides by 2
w = 2 Simplify

let’s practice!