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3/7x-9=-4
We move all terms to the left:
3/7x-9-(-4)=0
Domain of the equation: 7x!=0We add all the numbers together, and all the variables
x!=0/7
x!=0
x∈R
3/7x-5=0
We multiply all the terms by the denominator
-5*7x+3=0
Wy multiply elements
-35x+3=0
We move all terms containing x to the left, all other terms to the right
-35x=-3
x=-3/-35
x=3/35
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