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a=b u=4v 3r=s
2a+b=9 5u-v=10 3r+s=24
2b+b=9
3b=9
b=3=a
5u-v=10
20v-v=10
19v=10
v=1,9
u=4*1,9=7,6
3r+s=24
3r+3r=24
6r=24
r=4
3*4+s=24
s=12
Pozdrawiam!
a=b
2a+b=9
a=b
2b+b=9
a=b
3b=9
a=b
b=3
a=3
b=3
2)
u=4v
5u-v=10
u=4v
5(4v)-v=10
u=4v
19v=10
u=4v
v=10/19
u=40/19
v=10/19
3)
3r=s
3r+s=24
3r=s
3r+3r=24
3r=s
6r=24
3r=s
r=4
s=12
r=4
2b+b=9
3b=9/÷3
b=3
5u-v=10
5*(4v)-v=10
20v-v=10
19v=10/÷19
v=10
19
3r+s=24
s+s=24
2s=24/÷2
s=12
Ot i wszystko ;D .