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3+x/9=-2
We move all terms to the left:
3+x/9-(-2)=0
We add all the numbers together, and all the variables
x/9+5=0
We multiply all the terms by the denominator
x+5*9=0
We add all the numbers together, and all the variables
x+45=0
We move all terms containing x to the left, all other terms to the right
x=-45
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