document.write( "Question 816099: I am doing something wrong but i don't know what. My equations are x-5y = 15 and 4x-3y+26 , i multiplied the first equation by -4, then got -23y = 86 . What did i do wrong? Thanks \n" ); document.write( "

Algebra.Com's Answer #491375 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "I am doing something wrong but i don't know what. My equations are x-5y = 15 and 4x-3y+26 , i multiplied the first equation by -4, then got -23y = 86 . What did i do wrong? Thanks\r
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document.write( "   x -  5y =   15 ------ eq (i)
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document.write( "  4x -  3y =   26 ------ eq (ii)
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document.write( "- 4x + 20y = - 60 ----- Multiplying eq (i) by - 4 ----- eq (iii)
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document.write( "       17y = - 34 ---- ADDING eqs (iii) & (ii)
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document.write( "Solve for y and you should get: 
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document.write( "Do a check after finding x!! \r
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