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 b.

4 + 2b = 10

b =_____

Solve.

4 + 2b = 10

4 + 2b − 4 = 10 − 4 Subtract 4 from both sides

2b = 6 Simplify

2b/2 = 6/2 Divide both sides by 2

b = 3 Simplify

🔔 Solve for t.

2 + 2t = 6

t =____

Solve.

2 + 2t = 6

2 + 2t − 2 = 6 − 2 Subtract 2 from both sides

2t = 4 Simplify

2t/2 = 4/2 Divide both sides by 2

t = 2 Simplify

🔔 Solve for s.

3 + 2s = 9

s =_______

Solve.

3 + 2s = 9

3 + 2s − 3 = 9 − 3 Subtract 3 from both sides

2s = 6 Simplify

2s/2 = 6/2 Divide both sides by 2

s = 3 Simplify

Let’s practice!🖊️