document.write( "Question 563193: Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).\r
\n" ); document.write( "\n" ); document.write( " x + y = 15
\n" ); document.write( "4x + 3y = 38
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Algebra.Com's Answer #364820 by Alan3354(69443)\"\" \"About 
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Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).\r
\n" ); document.write( "\n" ); document.write( " x + y = 15
\n" ); document.write( "4x + 3y = 38
\n" ); document.write( "-------------
\n" ); document.write( "x + y = 15 --> y = 15-x
\n" ); document.write( "Sub for y in the 2nd eqn and find x.
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