15.9-y=7.9

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Solution for 15.9-y=7.9 equation: 



15.9-y=7.9

We move all terms to the left:

15.9-y-(7.9)=0

We add all the numbers together, and all the variables

-1y+8=0

We move all terms containing y to the left, all other terms to the right

-y=-8

y=-8/-1

y=+8

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