it wood help if yu put a fyu blanks tween yer 2 equashuns so sumwon
kan see it IS 2 equashuns...or yu kood add nois chars such as ........
line 1: 5x -(3/4)y=-43...20x -3y=-172....or y=(20/3)x +(172/3)
line 2: (1/3)x +5y=52/3...x +15y=52
line 2...x+15*[(20/3)x +(172/3)] =52
x+100x +860=52
101x=52-860=-808
x=-808/101=-8
y=(20/3)x +(172/3)=(20/3)*(-8) +(172/3)
=-(160/3) -(172/3)
=-332/3=-110.66666666...