-7(k-3)=-2(7+5k)-2k

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Solution for -7(k-3)=-2(7+5k)-2k equation: 



-7(k-3)=-2(7+5k)-2k

We move all terms to the left:

-7(k-3)-(-2(7+5k)-2k)=0

We add all the numbers together, and all the variables

-7(k-3)-(-2(5k+7)-2k)=0

We multiply parentheses

-7k-(-2(5k+7)-2k)+21=0



We calculate terms in parentheses: -(-2(5k+7)-2k), so:

-2(5k+7)-2k

We add all the numbers together, and all the variables

-2k-2(5k+7)

We multiply parentheses

-2k-10k-14

We add all the numbers together, and all the variables

-12k-14

Back to the equation:

-(-12k-14)



We get rid of parentheses

-7k+12k+14+21=0

We add all the numbers together, and all the variables

5k+35=0

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

5k=-35

k=-35/5

k=-7

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