document.write( "Question 256278: Find Y:\r
\n" ); document.write( "\n" ); document.write( "X+2Y-Z=-6
\n" ); document.write( "3x-y+2z=17
\n" ); document.write( "-5X+y-3z=-26\r
\n" ); document.write( "\n" ); document.write( "I tried substitution but i don't know I always do one little thing wrong and can't figure it out.\r
\n" ); document.write( "\n" ); document.write( "Please help.
\n" ); document.write( "Thankyou
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Algebra.Com's Answer #188448 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
I prefer elimination (maybe it's the cathartic suggestion of violence...)\r
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\n" ); document.write( "\n" ); document.write( "adding -3 times the 1st to the 2nd ___ -7Y + 5Z = 35 ___ A\r
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\n" ); document.write( "\n" ); document.write( "adding 5 times the 1st to the 3rd ___ 11Y - 8Z = -56 ___ B\r
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\n" ); document.write( "\n" ); document.write( "adding 8 times A to 5 times B ___ -Y = 0 ___ Y = 0\r
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