document.write( "Question 326827: Having problems solving for x and y on this one. Please help?
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document.write( "Solving by subsitution, either independent, dependent, or inconsistent?\r
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document.write( "y = -3x + 19 and y = 2x -1 \n" );
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Algebra.Com's Answer #234045 by tinbar(133)![]() ![]() ![]() You can put this solution on YOUR website! 1)y=-3x + 19 \n" ); document.write( "2)y=2x-1\r \n" ); document.write( "\n" ); document.write( "so take he right side of the equation in number 2 and replace it for y in number 1\r \n" ); document.write( "\n" ); document.write( "2x-1 = -3x+19 \n" ); document.write( "5x=20 \n" ); document.write( "x=4 \n" ); document.write( "now sub x=4 back into 1 or 2 to get y, both will give same answer \n" ); document.write( "from 1)y=-3(4)+19 = -12+19 = 7 \n" ); document.write( "from 2)y=2(4)-1 = 8-1 = 7\r \n" ); document.write( "\n" ); document.write( "therefore x=4, y =7 \n" ); document.write( " |