4(2b+42)=20b

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Solution for 4(2b+42)=20b equation: 



4(2b+42)=20b

We move all terms to the left:

4(2b+42)-(20b)=0

We add all the numbers together, and all the variables

-20b+4(2b+42)=0

We multiply parentheses

-20b+8b+168=0

We add all the numbers together, and all the variables

-12b+168=0

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

-12b=-168

b=-168/-12

b=+14

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