.2y-y=-100

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Solution for .2y-y=-100 equation:



.2y-y=-100
We move all terms to the left:
.2y-y-(-100)=0
We add all the numbers together, and all the variables
-0.8y+100=0
We move all terms containing y to the left, all other terms to the right
-0.8y=-100
y=-100/-0.8
y=+125

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