Answer:
x=10
Step-by-step explanation:
3(4x-12) = 84
Divide each side by 3
3/3(4x-12) = 84/3
4x-12 =28
Add 12 to each side
4x-12+12 = 28+12
4x= 40
Divide each side by 4
4x/4 = 40/4
x = 10
Answer:
it should be 64 ....
Step-by-step explanation:
X = 3
5(3) - 2 = 13
3(3) + 4 = 13
By the way the question is worded, I would say you undo addition by subtraction. I hope this helped!
