56=2.5x+(12-x)5.75

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Solution for 56=2.5x+(12-x)5.75 equation: 



56=2.5x+(12-x)5.75

We move all terms to the left:

56-(2.5x+(12-x)5.75)=0

We add all the numbers together, and all the variables

-(2.5x+(-1x+12)5.75)+56=0



We calculate terms in parentheses: -(2.5x+(-1x+12)5.75), so:

2.5x+(-1x+12)5.75

We multiply parentheses

2.5x-5.75x+69

We add all the numbers together, and all the variables

-3.25x+69

Back to the equation:

-(-3.25x+69)



We get rid of parentheses

3.25x-69+56=0

We add all the numbers together, and all the variables

3.25x-13=0

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

3.25x=13

x=13/3.25

x=4

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