200=45(3-x)+55x

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Solution for 200=45(3-x)+55x equation: 



200=45(3-x)+55x

We move all terms to the left:

200-(45(3-x)+55x)=0

We add all the numbers together, and all the variables

-(45(-1x+3)+55x)+200=0



We calculate terms in parentheses: -(45(-1x+3)+55x), so:

45(-1x+3)+55x

We add all the numbers together, and all the variables

55x+45(-1x+3)

We multiply parentheses

55x-45x+135

We add all the numbers together, and all the variables

10x+135

Back to the equation:

-(10x+135)



We get rid of parentheses

-10x-135+200=0

We add all the numbers together, and all the variables

-10x+65=0

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

-10x=-65

x=-65/-10

x=6+1/2

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