Question

$5(3b - 3) - 3(3b - 7) = 12$

​

Answer 1

$\huge{\mathcal{\blue{Answer}}}$

$5(3b - 3) - 3(3b - 7) = 12 \\ 15b - 15 - 9b + 21 = 12 \\ 6b + 6 = 12 \\ 6b = 12 - 6 \\ 6b = 6$

$\huge{\mathcal{\blue{b=1}}}$

Answer 2

Answer:

15b-15-9b+21=12

15b-9b=12-21+15

6b=6

b=6/6

b=1answer.