180-x=6.5(90-x)

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Solution for 180-x=6.5(90-x) equation: 



180-x=6.5(90-x)

We move all terms to the left:

180-x-(6.5(90-x))=0

We add all the numbers together, and all the variables

-x-(6.5(-1x+90))+180=0

We add all the numbers together, and all the variables

-1x-(6.5(-1x+90))+180=0



We calculate terms in parentheses: -(6.5(-1x+90)), so:

6.5(-1x+90)

We multiply parentheses

-6.5x+585

Back to the equation:

-(-6.5x+585)



We get rid of parentheses

-1x+6.5x-585+180=0

We add all the numbers together, and all the variables

5.5x-405=0

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

5.5x=405

x=405/5.5

x=73+2.3333333333333/3.6666666666667

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