# SOLUTION: solve the system of equations by using the substitution method 3x-4y=29 y=x-8

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 Click here to see ALL problems on Linear-systems Question 546400: solve the system of equations by using the substitution method 3x-4y=29 y=x-8Answer by mananth(12270)   (Show Source): You can put this solution on YOUR website!3 x -5 y = 29 .............1 1 y = -8 + 1 x ---------2 / 1 = y = -8 + 1 x Substitute y in (1) 3 x -5 ( -8 + 1 x ) = 29 3 x + 40 + -5 x = 29 3 x -5 x = 29 -40 -2 x = -11 / -2 x= 5.5 Plug the value of x in (1) 3 x -5 y = 29 3 * 5.5 -5 y = 29 16.5 -5 y = 29 -5 y = 12.5 / -5 y= -2.5 m.ananth@hotmail.ca