-9(7-5k)=7(5k+3)

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Solution for -9(7-5k)=7(5k+3) equation: 



-9(7-5k)=7(5k+3)

We move all terms to the left:

-9(7-5k)-(7(5k+3))=0

We add all the numbers together, and all the variables

-9(-5k+7)-(7(5k+3))=0

We multiply parentheses

45k-(7(5k+3))-63=0



We calculate terms in parentheses: -(7(5k+3)), so:

7(5k+3)

We multiply parentheses

35k+21

Back to the equation:

-(35k+21)



We get rid of parentheses

45k-35k-21-63=0

We add all the numbers together, and all the variables

10k-84=0

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

10k=84

k=84/10

k=8+2/5

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