Question

Se x = −4 ,y = −6 e z = +12 , calcule quanto vale:

a) x + y=

f)
y
------- =
3

b) (−3) ⋅ x =

g)y + y =

c) z : y =

h)y ⋅ y =

d) z − y =

I) y−y =

e) y − z =​​

Answer 1

Resposta:

x = -4, y = -6, z = +12

a) x + y = -4 - 6 = -10

b) (-3)*(-4) = 12

c) z/y = 12/-6 = -2

d) z - y = 12 - (-6) = 12 + 6 = 18

e) y - z = -6 - 12 = -18

f) y/3 = -6/3 = -2

g) y + y = -6 - 6 = -12

h) y*y = (-6)*(-6) = 36

i) y - y = (-6) - (-6) = -6 + 6 = 0