Dla jakich wartości A i B rozwiazanie ukladu rownan jest para liczb?
x=2
y=3
{ (a-1)x-3y=13
-5x+(b+1)y= -16
ax-x-3y=13
-5x+by+y=-16
2a-2-3*3=13
-5*2+3b+3=-16
2a-11=13
-10+3b+3=-16
2a=24
3b=-9
a=12
b=-3
(a-1)x-3y=13
(a-1)*2-3*3=13
-5*2+(b+1)*3= -16
(a-1)*2-9=13
-10+(b+1)*3= -16
2a-2-9=13
-10+3b+3= -16
-7+3b=-13
2a=24/2
3b=-9/3
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ax-x-3y=13
-5x+by+y=-16
2a-2-3*3=13
-5*2+3b+3=-16
2a-11=13
-10+3b+3=-16
2a=24
3b=-9
a=12
b=-3
(a-1)x-3y=13
-5x+(b+1)y= -16
(a-1)*2-3*3=13
-5*2+(b+1)*3= -16
(a-1)*2-9=13
-10+(b+1)*3= -16
2a-2-9=13
-10+3b+3= -16
2a-11=13
-7+3b=-13
2a=24/2
3b=-9/3
a=12
b=-3