Question

what is the answer to 7b-15=5b-3

Answer 1

first you move -15 over which makes it 7b=5b+12
then you move 5b over so then its 2b=12
divide b=6

Answer 2

7b - 15 = 5b - 3
7b - 5b = -3 + 15
2b = 12
b = 6