Question

Determinati valoria expresiei x-y+z a) x=-3, y=-7, z=-8
b)x=9, y=12, z=-8
c)x=-21, y=-6, z=17

Answer 1

a) -3-(-7)+(-8)=-3+7-8=-4
b) 9-12+(-8)=-3-8=-11
c) -21-(-6)+17=-21+6+17=2

Answer 2

Le inlocuiesti pe fiecare in expresie:

a). -3-(-7)+(-8)= -3+7-8= -4
b). 9-12+(-8)= -11
c). -21-(-6)+17= -21+6+17 = 2