-2x=0.5(42-6x)

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Solution for -2x=0.5(42-6x) equation: 



-2x=0.5(42-6x)

We move all terms to the left:

-2x-(0.5(42-6x))=0

We add all the numbers together, and all the variables

-2x-(0.5(-6x+42))=0



We calculate terms in parentheses: -(0.5(-6x+42)), so:

0.5(-6x+42)

We multiply parentheses

-3x+21

Back to the equation:

-(-3x+21)



We get rid of parentheses

-2x+3x-21=0

We add all the numbers together, and all the variables

x-21=0

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

x=21

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