x+y/2 = 3.54
x+y = 7.08
x+1.2 = y
x+x+1.2 = 7.08
2x = 5.88
x = 2.94
y = 2.94+1.2 = 4.14
Пошаговое объяснение:
х=4.14
у=2.94
(х+у)÷2=3.54
х=у+1.2
(у+у+1.2)÷2=3.54
2у+1.2=7.08
2у=5.88
