12=4(k-15)

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Solution for 12=4(k-15) equation: 



12=4(k-15)

We move all terms to the left:

12-(4(k-15))=0



We calculate terms in parentheses: -(4(k-15)), so:

4(k-15)

We multiply parentheses

4k-60

Back to the equation:

-(4k-60)



We get rid of parentheses

-4k+60+12=0

We add all the numbers together, and all the variables

-4k+72=0

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

-4k=-72

k=-72/-4

k=+18

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