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x/3.5=-3
We move all terms to the left:
x/3.5-(-3)=0
We add all the numbers together, and all the variables
x/3.5+3=0
We multiply all the terms by the denominator
x+3*3.5=0
We add all the numbers together, and all the variables
x+10.5=0
We move all terms containing x to the left, all other terms to the right
x=-10.5
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