20=-10(x+8)

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Solution for 20=-10(x+8) equation: 



20=-10(x+8)

We move all terms to the left:

20-(-10(x+8))=0



We calculate terms in parentheses: -(-10(x+8)), so:

-10(x+8)

We multiply parentheses

-10x-80

Back to the equation:

-(-10x-80)



We get rid of parentheses

10x+80+20=0

We add all the numbers together, and all the variables

10x+100=0

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

10x=-100

x=-100/10

x=-10

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