document.write( "Question 1199811: Solve the following systems graphically and algebraically.\r
\n" ); document.write( "\n" ); document.write( "-17x+18y = 89
\n" ); document.write( "-18x-11y = -26 \n" ); document.write( "
Algebra.Com's Answer #833777 by ankor@dixie-net.com(22740)\"\" \"About 
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Solve the following systems graphically and algebraically.
\n" ); document.write( "-17x+18y = 89
\n" ); document.write( "-18x-11y = -26
\n" ); document.write( "To graph the 1st equation
\n" ); document.write( "18y = 17x + 89
\n" ); document.write( "y = \"%2817x%2B89%29%2F18\"
\n" ); document.write( "To graph the 2nd equation
\n" ); document.write( "-11y = 18x - 26
\n" ); document.write( "y = \"%2818x-26%29%2F%28-11%29\"
\n" ); document.write( "graphing these 2 equation, note they intersect at x =-1, y = 4
\n" ); document.write( "
\n" ); document.write( ":
\n" ); document.write( "-17x+18y = 89
\n" ); document.write( "-18x-11y = -26
\n" ); document.write( "----------------Subtract
\n" ); document.write( "x + 29y = 115
\n" ); document.write( "x = -29y + 115
\n" ); document.write( "in the 2nd equation, replace x with (-29y+115)
\n" ); document.write( "-18(-29y+115) - 11y = -26
\n" ); document.write( "522y - 2070 - 11y + -26
\n" ); document.write( "522y - 11y = -26 + 2070
\n" ); document.write( "511y = 2044
\n" ); document.write( "y = 2044/511
\n" ); document.write( "y = 4
\n" ); document.write( "find x using the 1st equation, y = 4
\n" ); document.write( "-17x + 18(4) = 89
\n" ); document.write( "-17x + 72 = 89
\n" ); document.write( "-17x = 89 - 72
\n" ); document.write( "x = 17/-17
\n" ); document.write( "x = -1
\n" ); document.write( " \n" ); document.write( "
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