Question

Which of the following numbers is a solution for the equation 2(x + 3) = 18?a) 5 b) 6 c) 13 d) 21

Answer 1

The Answer is B, x = 6

First you must distribute the 2 to both the x and the 3.

This will give you $2x +6 = 18$

Next you need to isolate the x, so the first step is bringing the 6 to the other side of the equation via subtraction

This will give you $2x = 12$

Next you must divide each side by 2, so that the x is alone.

This will give you the answer, $x = 6$