-9x+8y=29 - -18x+4y=-19

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1 Answer

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
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