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2v=u+2
2u -5=v
-2u+4=-4v
-1= -3v
v=1/3
2u -5= 1/3
2u= 5 i 1/3
u= 2 i 2/3
2u=2v
2u-v=5 |*-1
2u-2v=0
-2u+v=-5
2u-2v=0
-v=-5 |:-1
2u=2v
v=5
2u=2*5
v=5
2u=10 |:2
v=5
u=5
Moim zdaniem to ma być tak :))
2v=u+2 // :2
v=½u + 1
2u=½u+1+5
2u - ½u=6
1,5u=6 // :1,5
u=4
v=½ * 4 + 1
v=2+1
v=3
u=4
proszę bardzo;)