document.write( "Question 53415This question is from textbook Prentice Hall Mathematics Algebra 1
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document.write( ": What is -y + 10 = 25? I did:
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document.write( "-y + 10 = 25
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document.write( " -25 -25
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document.write( " -y = -15
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document.write( "-1(-y) = -1(-15)
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document.write( " y = 15
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document.write( "Am I right? \n" );
document.write( "
Algebra.Com's Answer #854305 by MathTherapy(10830) You can put this solution on YOUR website! \r\n" ); document.write( "What is -y + 10 = 25? I did:\r\n" ); document.write( "-y + 10 = 25\r\n" ); document.write( " -25 -25\r\n" ); document.write( " -y = -15\r\n" ); document.write( "-1(-y) = -1(-15)\r\n" ); document.write( " y = 15\r\n" ); document.write( "Am I right?\r\n" ); document.write( "***********\r\n" ); document.write( "As @IKLEYN pointed out, the answer you came up with, and @consc198 agreed with: y = 15, is WRONG! \r\n" ); document.write( "\r\n" ); document.write( "You stated: What is -y + 10 = 25? I did:\r\n" ); document.write( " - y + 10 = 25\r\n" ); document.write( " -25 -25 <=== Here, you should've SUBTRACTED 10 from each side, instead of 25 \r\n" ); document.write( " - y = - 15 <=== This is where you went WRONG\r\n" ); document.write( " - y - 15 = 0 <=== This is what you should've had\r\n" ); document.write( " - 15 = y ---- ADDing y to each side \r\n" ); document.write( "\r\n" ); document.write( "A very EASY WAY is: \r\n" ); document.write( " - y + 10 = 25\r\n" ); document.write( " - 10 - 10 <=== Subtracting 10 from each side, to ISOLATE the variable \r\n" ); document.write( " - y = 15\r\n" ); document.write( "\n" ); document.write( " |