Question

Which statement makes the best open sentence 12 + 3x = 30 true?

A. x=2

B. x=4

C. x=5

D. x=6

Answer 1

The equation 12+3x=30 can be solved by the following

12+3x=30

First subtract 12 from both sides making the equation

3x=18

Now divide 3 from both sides

x=6