-10+k=2(k-20)

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Solution for -10+k=2(k-20) equation: 



-10+k=2(k-20)

We move all terms to the left:

-10+k-(2(k-20))=0



We calculate terms in parentheses: -(2(k-20)), so:

2(k-20)

We multiply parentheses

2k-40

Back to the equation:

-(2k-40)



We get rid of parentheses

k-2k+40-10=0

We add all the numbers together, and all the variables

-1k+30=0

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

-k=-30

k=-30/-1

k=+30

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