45=12+b+7b

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Solution for 45=12+b+7b equation:


45=12+b+7b

We simplify the equation to the form, which is simple to understand 
45=12+b+7b

We move all terms containing b to the left and all other terms to the right. 
-1b-7b=+12-45

We simplify left and right side of the equation. 
-8b=-33

We divide both sides of the equation by -8 to get b. 
b=4.125

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