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3x+x/3=3500
We move all terms to the left:
3x+x/3-(3500)=0
We multiply all the terms by the denominator
3x*3+x-3500*3=0
We add all the numbers together, and all the variables
x+3x*3-10500=0
Wy multiply elements
x+9x-10500=0
We add all the numbers together, and all the variables
10x-10500=0
We move all terms containing x to the left, all other terms to the right
10x=10500
x=10500/10
x=1050
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