document.write( "Question 183086: -7y-8y= -15\r
\n" ); document.write( "\n" ); document.write( "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?
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Algebra.Com's Answer #137461 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\"-7y-8y=-15\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"-15y=-15\" Combine like terms on the left side. Note: -7y-8y combines to -15y NOT -y\r
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\n" ); document.write( "\n" ); document.write( "\"y=%28-15%29%2F%28-15%29\" Divide both sides by \"-15\" to isolate \"y\".\r
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\n" ); document.write( "\n" ); document.write( "\"y=1\" Reduce.\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So the answer is \"y=1\" \r
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