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3/70x=21/7
We move all terms to the left:
3/70x-(21/7)=0
Domain of the equation: 70x!=0We add all the numbers together, and all the variables
x!=0/70
x!=0
x∈R
3/70x-3=0
We multiply all the terms by the denominator
-3*70x+3=0
Wy multiply elements
-210x+3=0
We move all terms containing x to the left, all other terms to the right
-210x=-3
x=-3/-210
x=1/70
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