15b+30=90

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Solution for 15b+30=90 equation: 



15b+30=90

We move all terms to the left:

15b+30-(90)=0

We add all the numbers together, and all the variables

15b-60=0

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

15b=60

b=60/15

b=4

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