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60%x-120%y=3
y=35-x
0,6x-1,2y=3
0,6x-1,2(35-x)=3
0,6x-42+1,2x=3
1,8x-42=3
1,8x=45
x=25
y=35-25
y=10
60%x-120%y=3
y=35-x
0,6x-1,2y=3
0,6x-1,2(35-x)=3
0,6x-42+1,2x=3
1,8x-42=3
1,8x=45
x=25
y=35-25
y=10
druga liczba: y
60% większa liczba: 60%x
120% mniejsza liczba: 120%y
a więc układem równań:
x+y=35
60%x-120%y=3
y=35-x
0,6x-1,2y=3
0,6x-1,2(35-x)=3
0,6x-42+1,2x=3
1,8x-42=3
1,8x=45
x=25
y=35-25
y=10
x=25
y=10