document.write( "Question 291546: How do I solve this system of equations?\r
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document.write( "y=2x+3
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document.write( "y=-2x+7 \n" );
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Algebra.Com's Answer #210781 by blwinbbbles(106)![]() ![]() You can put this solution on YOUR website! You would use substitution\r \n" ); document.write( "\n" ); document.write( "if y = 2x + 3 and y = -2x + 7 then you can say:\r \n" ); document.write( "\n" ); document.write( "2x + 3 = -2x + 7 add 2x to both sides \n" ); document.write( "4x + 3 = 7 subtract 3 from both sides \n" ); document.write( "4x = 4 divide by 4 \n" ); document.write( "x = 1\r \n" ); document.write( "\n" ); document.write( "so if x = 1 \n" ); document.write( "then go back to one of the original equations and put 1 in place of x \n" ); document.write( "therefore:\r \n" ); document.write( "\n" ); document.write( "y = 2(1) + 3 \n" ); document.write( "y = 2 + 3 \n" ); document.write( "y = 5\r \n" ); document.write( "\n" ); document.write( "your cordinate is (1,5) \n" ); document.write( " \n" ); document.write( " |