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x - 2y = -3
2x + 3y = 8
x= -3+2y
2(-3+2y)+3y=8
x=-3+2y
-6+4y+3y=8
x= -3+2y
7y=8+6
x= -3+2y
7y=14/:7
x= -3+2y
y=2
x= -3+2*2
y=2
x= -3+4
y=2
x=1
y=2
spr
x-2y=-3
1-2*2=-3
1-4= -3
-3= -3
L=P
2x+3y=8
2*1+3*2=8
2+6=8
8=8
L=P