Question

Ex 6 vă rog. dau coroana repede​

Answer 1

Răspuns:

x=0,1,2,3

y=198,197,196,195

z=0,1,2,3,4,5,6

a=515,516,517

Answer 2

x+257<261| - 257

x<4

x∈{..., 0, 1, 2, 3}

y-195<4| +195

y< 199

y∈{..., 195, 196, 197, 198}

493-z >485|-493

-z> -8| :(-1)

impartim la nr. negativ, deci schimbam sensul inecuatiei

z< 8

z∈{... 5, 6, 7}