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-y/2=-49
We move all terms to the left:
-y/2-(-49)=0
We add all the numbers together, and all the variables
-y/2+49=0
We multiply all the terms by the denominator
-y+49*2=0
We add all the numbers together, and all the variables
-1y+98=0
We move all terms containing y to the left, all other terms to the right
-y=-98
y=-98/-1
y=+98
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