-140=5(3k-7)

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Solution for -140=5(3k-7) equation: 



-140=5(3k-7)

We move all terms to the left:

-140-(5(3k-7))=0



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

5(3k-7)

We multiply parentheses

15k-35

Back to the equation:

-(15k-35)



We get rid of parentheses

-15k+35-140=0

We add all the numbers together, and all the variables

-15k-105=0

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

-15k=105

k=105/-15

k=-7

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