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25% x 4x +4x =5x - pierwsza liczba
5x-40 - druga liczba
Proporcja
5x-40 --- 5x
2 ---- 3
15x-120 = 10x
5x = 120
x = 24
y druga liczba
x/y=4/5
x*1,25/y-40=3/2
5x=4y
2,5x=3y-120 /*2
5x=4y
5x=6y-240
4y=6y-240
-2y=-240
y=120
Wyliczam x
5x=4*120
x=96
Te liczby to 96 i 120