mi ges bout wot yu tri tu rite down...
line 1...0.5x -0.3y=1.9...or 5x -3y=19... become 3y=5x-19
line 2...0.3x +y =0.5...or y=-0.3x+0.5...or 3y=-0.9x +1.5
thus, 5x-19=-0.9x+1.5
become 5.9x=19+1.5=20.5
x=20.5/5.9=3.474576271
y=-0.3x+05.=-1.042372881+0.5
y=-0.542372881