x+x-20+90=180;x=35

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Solution for x+x-20+90=180;x=35 equation: 



x+x-20+90=180x=35

We move all terms to the left:

x+x-20+90-(180x)=0

We add all the numbers together, and all the variables

-178x+70=0

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

-178x=-70

x=-70/-178

x=35/89

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