Ucie dobrze uklad rownan, ja go sama rozwiaze.
(x+y)5=10x+y 5x+5y=10x+y 4y=5x y=5x/4=x=4Vx8 y=5Vy=10 y=5 wynik to 45
10a+b=5(a+b)
10a+b=5a+5b/ -5a
5a+b=5b/ -b
5a= 4b/ :5
a=4/5b
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(x+y)5=10x+y
5x+5y=10x+y
4y=5x
y=5x/4=x=4Vx8
y=5Vy=10
y=5
wynik to 45
10a+b=5(a+b)
10a+b=5a+5b/ -5a
5a+b=5b/ -b
5a= 4b/ :5
a=4/5b