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x/3 - y/2 + 1=0/*6
5x+4y-100=0
2x-3y+6=0
5x+4y=100/*2
2x-3y=-6/*(-5)
10x+8y=200
-10x+15y=30
10x+8y-10x+15y=200+30
23y=230/:23
y=10
2x-3y+6=0
2x-3*10+6=0
2x=30-6
2x=24/:2
x=12
x=12
y=10
liczę na naj ;D