mi ges is yu hav 2 equashuns & wanna find x & y
yer "- -" tween comefuze & make me wunder if 2nd part hav -18x????
line 1: -9x+8y=29 or -18x+16y=58
line 2:+18x+4y=-19
add...(18x -18x)+(4y +16y)=58-19
20y=39
y=39/20=1.95
18x+4y=-19...18x+4*1.95=-19,,,,18x+7.8=-19,,,18x=-19-7.8=-26.8
x=-26.8/18=-1.48888888