3 ways answer equal 4a-12

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

Step-by-step explanation:

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