1142=2.0x+4.0(415-x)

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Solution for 1142=2.0x+4.0(415-x) equation: 



1142=2.0x+4.0(415-x)

We move all terms to the left:

1142-(2.0x+4.0(415-x))=0

We add all the numbers together, and all the variables

-(2.0x+4.0(-1x+415))+1142=0



We calculate terms in parentheses: -(2.0x+4.0(-1x+415)), so:

2.0x+4.0(-1x+415)

We multiply parentheses

2.0x-4x+1660

We add all the numbers together, and all the variables

-2x+1660

Back to the equation:

-(-2x+1660)



We get rid of parentheses

2x-1660+1142=0

We add all the numbers together, and all the variables

2x-518=0

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

2x=518

x=518/2

x=259

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