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Rachel98
a = 3(b+4) solve for b. What's the answer?
distribute the 3 So we have a= 3b+ 12 now try to get b by itself
first divide 3 on both sides and then subtract 4 on both sides to get b = (a/3) - 4
a=3b+12 a-12=3b b=(a-12)/3 b=a/3-4