-5(4k+2)=-90

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Solution for -5(4k+2)=-90 equation: 



-5(4k+2)=-90

We move all terms to the left:

-5(4k+2)-(-90)=0

We add all the numbers together, and all the variables

-5(4k+2)+90=0

We multiply parentheses

-20k-10+90=0

We add all the numbers together, and all the variables

-20k+80=0

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

-20k=-80

k=-80/-20

k=+4

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