6b+7+9b-7=90

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Solution for 6b+7+9b-7=90 equation: 



6b+7+9b-7=90

We move all terms to the left:

6b+7+9b-7-(90)=0

We add all the numbers together, and all the variables

15b-90=0

We move all terms containing b to the left, all other terms to the right

15b=90

b=90/15

b=6

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