SOLUTION: -7y-8y= -15 I have tried adding 7y to the -7y to cancel that out then add the 7y to -8y which comes out to be -y= -15 so my answer should be 15 but the answer according to the b

Algebra ->  Equations -> SOLUTION: -7y-8y= -15 I have tried adding 7y to the -7y to cancel that out then add the 7y to -8y which comes out to be -y= -15 so my answer should be 15 but the answer according to the b      Log On


   



Question 183086: -7y-8y= -15
I have tried adding 7y to the -7y to cancel that out then add the 7y to -8y which comes out to be -y= -15 so my answer should be 15 but the answer according to the back of my book says it should be 1. What am I doing wrong?

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

-7y-8y=-15 Start with the given equation.


-15y=-15 Combine like terms on the left side. Note: -7y-8y combines to -15y NOT -y


y=%28-15%29%2F%28-15%29 Divide both sides by -15 to isolate y.


y=1 Reduce.


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Answer:

So the answer is y=1