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

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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)   (Show Source): You can put this solution on YOUR website!

Start with the given equation.


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


Divide both sides by to isolate .


Reduce.


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Answer:

So the answer is


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