4(b+5)=12

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Solution for 4(b+5)=12 equation: 



4(b+5)=12

We move all terms to the left:

4(b+5)-(12)=0

We multiply parentheses

4b+20-12=0

We add all the numbers together, and all the variables

4b+8=0

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

4b=-8

b=-8/4

b=-2

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