Question

Write and solve an equation to find the number: The sum of three times a number and 12 is 45.

Answer 1

Explanation:

3x+12=45

3x=45-12

3x=33

3x/3=33/3

x=11

Answer 2

Explanation:

Equation

3x +12 = 45 Subtract 12 from both sides

Solution

3x + 12 - 12 = 45 - 12

3x = 33 Divide by 3

3x/3 = 33/3

x = 11