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x/3+3x=80
We move all terms to the left:
x/3+3x-(80)=0
We add all the numbers together, and all the variables
3x+x/3-80=0
We multiply all the terms by the denominator
3x*3+x-80*3=0
We add all the numbers together, and all the variables
x+3x*3-240=0
Wy multiply elements
x+9x-240=0
We add all the numbers together, and all the variables
10x-240=0
We move all terms containing x to the left, all other terms to the right
10x=240
x=240/10
x=24
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