document.write( "Question 1019854: Use the substitution method to solve the following system of equations. And check your answers.\r
\n" ); document.write( "\n" ); document.write( "(1) 3x - y = 9
\n" ); document.write( "(2) 3y + 11 = 5x \n" ); document.write( "

Algebra.Com's Answer #635786 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


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document.write( "Hi  \r
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document.write( "(1) 3x - y = 9
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document.write( "(2) 3y + 11 = 5x
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document.write( " Using the substitution method:
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document.write( "y = 3x-9   
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document.write( "3(3x-9) + 11 = 5x  
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document.write( "9x - 27 + 11 = 5x
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document.write( "4x =  27-11
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document.write( "4x = 16
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document.write( "x = 4 , y = 3  \r
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document.write( "Checking our Work!
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document.write( "3*3 + 11 = 5*4
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document.write( "      20 = 20
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