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90-x=1/3
We move all terms to the left:
90-x-(1/3)=0
We add all the numbers together, and all the variables
-x+90-(+1/3)=0
We add all the numbers together, and all the variables
-1x+90-(+1/3)=0
We get rid of parentheses
-1x+90-1/3=0
We multiply all the terms by the denominator
-1x*3-1+90*3=0
We add all the numbers together, and all the variables
-1x*3+269=0
Wy multiply elements
-3x+269=0
We move all terms containing x to the left, all other terms to the right
-3x=-269
x=-269/-3
x=89+2/3
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