1. First, you can divide both sides by 2 to make it easier to solve
3(3b + 5) = 6b - 21
Next, you can divide both sides by 3
3b + 5 = 2b - 7
Subtract both sides by 2b and 5
b = -12 is your answer
2. First, divide both sides by 2
5y - 2 = 5y - 2
It is clear these are the same equation, so there will be infinite solutions
Infinite solutions is the answer
