20=3x-5x(-4)

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Solution for 20=3x-5x(-4) equation: 



20=3x-5x(-4)

We move all terms to the left:

20-(3x-5x(-4))=0



We calculate terms in parentheses: -(3x-5x(-4)), so:

3x-5x(-4)

We multiply parentheses

3x+20x

We add all the numbers together, and all the variables

23x

Back to the equation:

-(23x)



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

-23x=-20

x=-20/-23

x=20/23

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