document.write( "Question 244341: Solve by the substitution method. I have part of this I will add it here and hopefully someone can help me with the last part. \r
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document.write( "Solve by the substitution method.\r
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document.write( "8x+2y=-46
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document.write( "-6x+y=47\r
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document.write( "Ok, so you start with the second equation to make it more simple. \r
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document.write( "1(-6x+47)\r
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document.write( "y=-6x+47\r
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document.write( "Substitute that for y in the first equation.\r
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document.write( "8x+2(-6x+47)=-46
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document.write( "8x-12+94=-46\r
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document.write( "Collect like terms. \r
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document.write( "-4x+94-94=-46+94\r
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document.write( "-4x=48\r
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document.write( "x=-12\r
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document.write( "Is this correct so far? \r
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document.write( "So next you would take -12 and substitute it into the second equation. \r
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document.write( "-6(-12)+47\r
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document.write( "72+47\r
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document.write( "y=119\r
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document.write( "So my ordered pair would be \r
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document.write( "(-12,119)\r
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document.write( "except I know this is wrong, I am just wondering exactly what I did wrong here. Thanks in advance.\r
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Algebra.Com's Answer #178758 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! -6x+y=47 ___ adding 6x ___ y = 6x + 47\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting ___ 8x + 2(6x + 47) = -46 ___ 20x + 94 = -46 ___ 20x = -140 ___ x = -7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "substituting ___ -6(-7) + y = 47 ___ 42 + y = 47 ___ y = 5 \n" ); document.write( " |