Question

what is the solution to x + 4 = 12

Answer 1

The answer is x=8 because 8+4 is 12

Answer 2

x + 4 = 12

Note the equal sign. What you do to one side, you do to the other. Isolate the x. Subtract 4 from both sides

x + 4 (-4) = 12 (-4)

x = 12 - 4

Subtract

x = 8

8 is your solution for x

hope this helps