Question

Using the properties of equality to solve the equation -2b + 7 = -13, you would _____.

Answer 1

Subtract 7 from both sides and then divide both sides by -2

-2b + 7 = -13

⇒-2b + 7 = -13 - 7 ⇒ -2b = -20

⇒ -2b / -2 = -20 / -2 ⇒ b = 10