Question

Which value in the set [4, 9, 15, 36] is a solution of 12 = 3 + x?

Answer 1

x=9 because 9+3=12 so the answer is 9

Answer 2

x=9

Explanation:

Step 1: Simplify both sides of the equation.

12=x+3

Step 2: Flip the equation.

x+3=12

Step 3: Subtract 3 from both sides.

x+3−3=12−3