document.write( "Question 141616: Solve the substitution:\r
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document.write( "(3x + 5y = 5
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document.write( "(x -2y = 9 \n" );
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Algebra.Com's Answer #103164 by oscargut(2103)![]() ![]() You can put this solution on YOUR website! 3x + 5y = 5 \n" ); document.write( "x -2y = 9 then x=2y+9\r \n" ); document.write( "\n" ); document.write( "substituting in the first eq we have 3(2y+9)+5y=5\r \n" ); document.write( "\n" ); document.write( "6y+27+5y=5\r \n" ); document.write( "\n" ); document.write( "11y=-22 \n" ); document.write( "then y=-2 and x=2(-2)+9=5 \n" ); document.write( "Answer: x=5 and y=-2 \n" ); document.write( " |