Question

3 ways answer equal 4a-12

Answer 1

1. You could equal the equation to 0 and solve
2. insert values for a until you get 0
3. equal it to zero then subtract by 4a to put it on the other side and solve.

Explanation:

1. 4a - 12 = 0

+12 +12

4a = 12

/4 /4

a = 3

2. 4a-12 (just insert values until you get 0) (1,2,3,4,...)

3. 4a - 12 = 0

-4a -4a

-12 = -4a

/-4 /-4

a = 3