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90+x+(2x/15)=180
We move all terms to the left:
90+x+(2x/15)-(180)=0
We add all the numbers together, and all the variables
x+(+2x/15)+90-180=0
We add all the numbers together, and all the variables
x+(+2x/15)-90=0
We get rid of parentheses
x+2x/15-90=0
We multiply all the terms by the denominator
x*15+2x-90*15=0
We add all the numbers together, and all the variables
2x+x*15-1350=0
Wy multiply elements
2x+15x-1350=0
We add all the numbers together, and all the variables
17x-1350=0
We move all terms containing x to the left, all other terms to the right
17x=1350
x=1350/17
x=79+7/17
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