7(10b+4)+9=107

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Solution for 7(10b+4)+9=107 equation: 



7(10b+4)+9=107

We move all terms to the left:

7(10b+4)+9-(107)=0

We add all the numbers together, and all the variables

7(10b+4)-98=0

We multiply parentheses

70b+28-98=0

We add all the numbers together, and all the variables

70b-70=0

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

70b=70

b=70/70

b=1

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