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2x-10+3y-3 = -13
2x+3y = - 13 + 10+3
2x+3y=0
3(x-2)-2(y+1)=5
3x-6 -2y-2=5
3x-2y=5+6+2
3x-2y=13
2x+3y=0/*3
3x-2y=13/*-2
6x+9y=0
-6x+4y=-26
13y=-26/:13
y=-2
2x + 3*-2=0
2x=6 /:2
x=3
SPR.
2x+3y=0
3x-2y=13
2*3 + 3 * -2 = 0
3*3 - 2 * -2=13
6+(-6)= 0
9+4=13
6-6=0
13=13
0=0
13=13
Licze na naj
2x-10+3y-3=-13
2x+3y=-13+10+3
2x+3y=0
3(x-2)-2(y+1)=5
3x-6-2y-2=5
3x-2y=5+6+2
3x-2y=13