108=-4(5r-2)

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Solution for 108=-4(5r-2) equation: 



108=-4(5r-2)

We move all terms to the left:

108-(-4(5r-2))=0



We calculate terms in parentheses: -(-4(5r-2)), so:

-4(5r-2)

We multiply parentheses

-20r+8

Back to the equation:

-(-20r+8)



We get rid of parentheses

20r-8+108=0

We add all the numbers together, and all the variables

20r+100=0

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

20r=-100

r=-100/20

r=-5

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