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-25.8=y/7-3.4
We move all terms to the left:
-25.8-(y/7-3.4)=0
We get rid of parentheses
-y/7+3.4-25.8=0
We multiply all the terms by the denominator
-y+(3.4)*7-(25.8)*7=0
We add all the numbers together, and all the variables
-1y-156.8=0
We move all terms containing y to the left, all other terms to the right
-y=156.8
y=156.8/-1
y=-156+0.80000000000001/1
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