# SOLUTION: Solve the system by substitution 5x+2y=-15 y=2x-12

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 Click here to see ALL problems on Linear-systems Question 84143: Solve the system by substitution 5x+2y=-15 y=2x-12Answer by funmath(2925)   (Show Source): You can put this solution on YOUR website!Solve the system by substitution 5x+2y=-15 R1 y=2x-12 R2 Let y=(2x-12) in R1 and solve for x 5x+2(2x-12)=-15 5x+4x-24=-15 9x-24=-15 9x-24+24=-15+24 9x=9 9x/9=9/9 x=1 Let x=1 in R2 and solve for y y=2(1)-12 y=2-12 y=-10 The solution to the system is (x,y)=(1,-10) Happy Calculating!!!!