Răspuns :
Răspuns:
x-y=?
x-a=78,48
a-y=13,789 ⇒ ca x-y=x-a+a-y=78,48+13,789=92,269
x - a = 78.48
a - y = 13.789
adunam relatiile
x - a + a - y = 78.48 + 13.789
x - y = 92.269
Răspuns:
x-y=?
x-a=78,48
a-y=13,789 ⇒ ca x-y=x-a+a-y=78,48+13,789=92,269
x - a = 78.48
a - y = 13.789
adunam relatiile
x - a + a - y = 78.48 + 13.789
x - y = 92.269