-8=4(j-20)

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Solution for -8=4(j-20) equation: 



-8=4(j-20)

We move all terms to the left:

-8-(4(j-20))=0



We calculate terms in parentheses: -(4(j-20)), so:

4(j-20)

We multiply parentheses

4j-80

Back to the equation:

-(4j-80)



We get rid of parentheses

-4j+80-8=0

We add all the numbers together, and all the variables

-4j+72=0

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

-4j=-72

j=-72/-4

j=+18

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