9b+4=3b-8

solve for b

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2 Answers

9b+4=3b-8

add -4 on both sides

9b+4-4=3b-8-4

9b=3b-12

add -3b on both sides

9b-3b=3b-3b-12

6b=-12

divide by 6 on both sides

6b/6=-12/6 

b=-2

by Level 6 User (18.3k points)
b= -12

because you have to do an equation
by

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