4(7a+3)=124

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Solution for 4(7a+3)=124 equation: 



4(7a+3)=124

We move all terms to the left:

4(7a+3)-(124)=0

We multiply parentheses

28a+12-124=0

We add all the numbers together, and all the variables

28a-112=0

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

28a=112

a=112/28

a=4

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