-7(7r-7)+2r=-280

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Solution for -7(7r-7)+2r=-280 equation: 



-7(7r-7)+2r=-280

We move all terms to the left:

-7(7r-7)+2r-(-280)=0

We add all the numbers together, and all the variables

2r-7(7r-7)+280=0

We multiply parentheses

2r-49r+49+280=0

We add all the numbers together, and all the variables

-47r+329=0

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

-47r=-329

r=-329/-47

r=+7

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