-91=-7(2k+2)-7

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Solution for -91=-7(2k+2)-7 equation: 



-91=-7(2k+2)-7

We move all terms to the left:

-91-(-7(2k+2)-7)=0



We calculate terms in parentheses: -(-7(2k+2)-7), so:

-7(2k+2)-7

We multiply parentheses

-14k-14-7

We add all the numbers together, and all the variables

-14k-21

Back to the equation:

-(-14k-21)



We get rid of parentheses

14k+21-91=0

We add all the numbers together, and all the variables

14k-70=0

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

14k=70

k=70/14

k=5

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