7(-7a+2)=357

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Solution for 7(-7a+2)=357 equation: 



7(-7a+2)=357

We move all terms to the left:

7(-7a+2)-(357)=0

We multiply parentheses

-49a+14-357=0

We add all the numbers together, and all the variables

-49a-343=0

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

-49a=343

a=343/-49

a=-7

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