Answer:
x=5
Step-by-step explanation:
so to isolate the x you dived the -3 to both sides
so it will now be
x=5 because a negative times or divided by a negative equals a positive so to prove that x=5
-3(5)=-15
which is true
The number could be any multiple of nine that ends in 4 or 9, like 9, 54, 99, 144, etc.
2
2 + 2 = 4
4 + 4 = 8
8 + 8 = 16
