document.write( "Question 1111674: \n" ); document.write( "
Algebra.Com's Answer #726665 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
1) 3x -3y = -27
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\n" ); document.write( "2) 2x +5y = 10
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\n" ); document.write( "for equation 1, divide both sides of = by 3
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\n" ); document.write( "x -y = -9
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\n" ); document.write( "solve for x
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\n" ); document.write( "x = y -9
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\n" ); document.write( "substitute for x in equation 2
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\n" ); document.write( "2(y-9) +5y = 10
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\n" ); document.write( "2y -18 +5y = 10
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\n" ); document.write( "7y = 28
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\n" ); document.write( "y = 4
\n" ); document.write( "x = 4 -9 = -5
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\n" ); document.write( "x = -5, y = 4
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\n" ); document.write( "check the answers
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\n" ); document.write( "equation 1
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\n" ); document.write( "3(-5) -3(4) = -27
\n" ); document.write( "-15 -12 = -27
\n" ); document.write( "-27 = -27
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\n" ); document.write( "equation 2
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\n" ); document.write( "2(-5) +5(4) = 10
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\n" ); document.write( "-10 +20 = 10
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\n" ); document.write( "10 = 10
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\n" ); document.write( "the answers check
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\n" ); document.write( "here is a graph of equation 1 red line, equation 2 is green line
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\n" ); document.write( "equation 1 in point slope form y = x +9, equation 2 is y = (-2x/5) + 2
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\n" ); document.write( "\"+graph%28+300%2C+200%2C+-10%2C+10%2C+-10%2C+10%2C+x%2B9%2C+%28-2x%2F5%29%2B2%29+\"
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