7=5(10+2k)

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Solution for 7=5(10+2k) equation: 



7=5(10+2k)

We move all terms to the left:

7-(5(10+2k))=0

We add all the numbers together, and all the variables

-(5(2k+10))+7=0



We calculate terms in parentheses: -(5(2k+10)), so:

5(2k+10)

We multiply parentheses

10k+50

Back to the equation:

-(10k+50)



We get rid of parentheses

-10k-50+7=0

We add all the numbers together, and all the variables

-10k-43=0

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

-10k=43

k=43/-10

k=-4+3/10

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