Question

Solve for x.

4 + 3x = 16
To solve this equation we must isolate the variable.
3x = [?]
First subtract 4 from both sides of the equation.
Calculate the new value of the right side of the equation.

Answer 1

Explanation:

4 + 3x =16

subtracting 4 on both sides

4-4 + 3x =16-4

0+ 3x = 12

3x = 12

x = 12/3

x= 4