Question

Calcule X+Y para:
a)X=+5 e Y=+7=
b)X=-3 e Y=-7=
c)X=+8 e Y=+11=
d)X=-15 e Y=-10=​

Answer 1

a) 5+7=12

b)(-3)+(-7)=-10

c)8+11=18

d)(-15)+(-10)=-25