rozwiaż uklad rownan.. a. 2x+y=11 5x-4y=8 b. 2x+y=4 x-2y=7 c. 3x+2y=1 5x-y=6 d. x-7y=3 5x-2y=11 Prosze o pomoc..':p
a
2x+y=11/*4
5x-4y=8
8x+4y=44
13x=52/podzielić na 13
x=4
2x+y=11
2*4+y=11
y=11-8
y=3
b)2x+y=4
x-2y=7/*(-2)
2x+y=4
-2x+4y=-14
5y=10/podzielić na 5
y=2
2x+2=4/-2
2x=2
x=1
c)3x+2y=1
5x-y=6/*2
3x+2y=1
10x-2y=12
13x=13
3*1+2y=1
2y=(-2)
y=(-1)
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a
2x+y=11/*4
5x-4y=8
8x+4y=44
5x-4y=8
13x=52/podzielić na 13
x=4
2x+y=11
x=4
2*4+y=11
x=4
y=11-8
x=4
y=3
x=4
b)2x+y=4
x-2y=7/*(-2)
2x+y=4
-2x+4y=-14
5y=10/podzielić na 5
y=2
2x+y=4
y=2
2x+2=4/-2
y=2
2x=2
y=2
x=1
y=2
c)3x+2y=1
5x-y=6/*2
3x+2y=1
10x-2y=12
13x=13
x=1
3x+2y=1
x=1
3*1+2y=1
x=1
2y=(-2)
x=1
y=(-1)
x=1