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170/5x=42
We move all terms to the left:
170/5x-(42)=0
Domain of the equation: 5x!=0We multiply all the terms by the denominator
x!=0/5
x!=0
x∈R
-42*5x+170=0
Wy multiply elements
-210x+170=0
We move all terms containing x to the left, all other terms to the right
-210x=-170
x=-170/-210
x=17/21
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