Question

What should be done to solve the following equation?

d - 8 = 9

Subtract 8 from both sides of the equation.
Add 8 to both sides of the equation.
Add 9 to both sides of the equation.
Subtract 9 from both sides of the equation.

Answer 1

To solve this equation, you need to isolate/get the variable (d) by itself, to do so, you should add 8 on both sides

d - 8 = 9

d - 8 + 8 = 9 + 8

d = 17 The 2nd option is your answer