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2/7=Y
We move all terms to the left:
2/7-(Y)=0
We add all the numbers together, and all the variables
-1Y+2/7=0
We multiply all the terms by the denominator
-1Y*7+2=0
Wy multiply elements
-7Y+2=0
We move all terms containing Y to the left, all other terms to the right
-7Y=-2
Y=-2/-7
Y=2/7
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