# SOLUTION: Solve by elimination method: 5x+5y= -13 7x-3y= 17

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 Click here to see ALL problems on Expressions-with-variables Question 167542: Solve by elimination method: 5x+5y= -13 7x-3y= 17Found 2 solutions by sowmya, aswathytony:Answer by sowmya(32)   (Show Source): You can put this solution on YOUR website!Solve by elimination method: 5x+5y= -13 7x-3y= 17 eq 1: x+y = -13/5 7x = 17+3y x = 17/7 + 3/7 y = 17/7 + 3/7 * (-x-13/7) =17/7 -3x/7 -39/49 10x/7 = 119-39/49 = 80/49 x = 8/7 y = -131/35 Answer by aswathytony(47)   (Show Source): You can put this solution on YOUR website!5x + 5y = -13 .......(1) 7x - 3y = 17 ............(2) (1) * 3 & (2) * 5 5x * 3 + 5y * 3 = -13* 3 15 x + 15 y = - 39 ............(3) 7x * 5 - 3y * 5 = 17 *5 35 x - 15 y = 85 ..........(4) (3) + (4) 50x = 46 x = 46 /50 = 0.92 substituting x =0.92 in (1) 5 * 0.92 + 5y = -13 4.6 + 5y = -13 5y = -13 - 4.6 = -17.6 y = -17.6 / 5 = -3.52