document.write( "Question 907709: I'm trying to solve using substitutions. Please help!!!
\n" ); document.write( "4x+2y=10
\n" ); document.write( "5x-4y=6 \n" ); document.write( "

Algebra.Com's Answer #550515 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "I'm trying to solve using substitutions. Please help!!!
\n" ); document.write( "4x+2y=10
\n" ); document.write( "5x-4y=6
\n" ); document.write( "


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document.write( "4x + 2y = 10_____2(2x + y) = 2(5)_____2x + y = 5_____y = 5 - 2x ------- eq (i)
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document.write( "5x - 4y = 6 ------ eq (ii)
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document.write( "5x - 4(5 - 2x) = 6 ------- Substituting 5 - 2x for y in eq (ii) 
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document.write( "5x - 20 + 8x = 6
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document.write( "5x + 8x = 6 + 20
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document.write( "13x = 26
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document.write( "x = , or  \r
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document.write( "y = 5 - 2(2) ------ Substituting 2 for x in eq (i)
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document.write( "y = 5 - 4
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document.write( "y = 
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document.write( "Solution set: 
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