document.write( "Question 714344: My question is: Use substitution to solve this- y=2x-5 & 3y-x=5
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document.write( "i tried adding them together then dividing it by 2, but it came out wrong. \n" );
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Algebra.Com's Answer #438778 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! 3y-x=5\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3(2x-5)-x=5 ... plug in y = 2x-5 (ie replace y with 2x-5, we can do this because y and 2x-5 are the same)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "6x - 15 - x = 5\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5x - 15 = 5\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I'll let you finish. You need to solve that equation for x. Once you have x, you can use that value of x, along with y = 2x - 5, to find y. \n" ); document.write( " |