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2x + 2y = 360
x = y + 36
4y = 360 - 72
4y = 288
y= 72
x = 72 + 36
x = 108
2.
x + y = 100
1/2 x = 1/3 y
x = 2/3y
5/3 y = 100
y = 60
x = 100 - 60
x = 40
x - jedna z tych liczb
100-x - druga liczba
½x=⅓(100-x)
½x=100/3-⅓x
⅚x=100/3
5x=200
x=40
100-x=100-40=60
0dp.te liczby to 40 i 60