Question

Sex = - 4, y = -6 e z = + 12, calcule:
a) x + y
b) (-3) . x
c) z : y
d) y - z

Answer 1

a) -4+(-6)= -10
b)(-3).(-4)= 12
c) 12 :(-6)= -2
d) -6-(+12)= -18