40=2(17+k)

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Solution for 40=2(17+k) equation: 



40=2(17+k)

We move all terms to the left:

40-(2(17+k))=0

We add all the numbers together, and all the variables

-(2(k+17))+40=0



We calculate terms in parentheses: -(2(k+17)), so:

2(k+17)

We multiply parentheses

2k+34

Back to the equation:

-(2k+34)



We get rid of parentheses

-2k-34+40=0

We add all the numbers together, and all the variables

-2k+6=0

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

-2k=-6

k=-6/-2

k=+3

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