Question

a = 3(b+4) solve for b. What's the answer?

Answer 1

distribute the 3

So we have a= 3b+ 12

now try to get b by itself

Answer 2

first divide 3 on both sides and then subtract 4 on both sides to get b = (a/3) - 4

Answer 3

a=3b+12
a-12=3b
b=(a-12)/3
b=a/3-4