20=x(-2)

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Solution for 20=x(-2) equation: 



20=x(-2)

We move all terms to the left:

20-(x(-2))=0



We calculate terms in parentheses: -(x(-2)), so:

x(-2)

We multiply parentheses

-2x

Back to the equation:

-(-2x)



We get rid of parentheses

2x+20=0

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

2x=-20

x=-20/2

x=-10

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