90-3x-1=180

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Solution for 90-3x-1=180 equation: 



90-3x-1=180

We move all terms to the left:

90-3x-1-(180)=0

We add all the numbers together, and all the variables

-3x-91=0

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

-3x=91

x=91/-3

x=-30+1/3

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