Math Solve for both systems 2x+2z=36 and 2x + 7z = 71 Asked by AnneS2 on 04 Oct 06:53 Last updated by anonymous on 05 Oct 10:25

2x+2z=36 2x-2x+2z=36 -2x 2z=36 -2x 2z/2=36 -2x/2 z=18-x 2x + 7z = 71 2x + 7(18-x) = 71 2x + 7(18) (7)(-x) = 71 2x + 126 -7x= 71 126 -5x= 71 126 -5x-126= 71-126 -5x=-55 -5x/-5=-55/-5 x=11 z=18-x z=18-11=7