7(-6x+21)-7=-280

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Solution for 7(-6x+21)-7=-280 equation: 



7(-6x+21)-7=-280

We move all terms to the left:

7(-6x+21)-7-(-280)=0

We add all the numbers together, and all the variables

7(-6x+21)+273=0

We multiply parentheses

-42x+147+273=0

We add all the numbers together, and all the variables

-42x+420=0

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

-42x=-420

x=-420/-42

x=+10

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