9-4b=-7

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Solution for 9-4b=-7 equation: 



9-4b=-7

We move all terms to the left:

9-4b-(-7)=0

We add all the numbers together, and all the variables

-4b+16=0

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

-4b=-16

b=-16/-4

b=+4

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