-7(-5+7x)=280

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Solution for -7(-5+7x)=280 equation: 



-7(-5+7x)=280

We move all terms to the left:

-7(-5+7x)-(280)=0

We add all the numbers together, and all the variables

-7(7x-5)-280=0

We multiply parentheses

-49x+35-280=0

We add all the numbers together, and all the variables

-49x-245=0

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

-49x=245

x=245/-49

x=-5

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