-7(-5x+3)=399

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Solution for -7(-5x+3)=399 equation: 



-7(-5x+3)=399

We move all terms to the left:

-7(-5x+3)-(399)=0

We multiply parentheses

35x-21-399=0

We add all the numbers together, and all the variables

35x-420=0

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

35x=420

x=420/35

x=12

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