Question

determine o valor de x nas expressoês abaixo.

a)x.(-4)=12
b)(-18):x=9
c)-63:x=-1
d)-40.x=120
e)x:(-4)=-25
f)x.(-10)=200
g)x:(-4)=0
h)x.(-1)=1
qual as respostas

Answer 1

a) x . (- 4) = 12
- 4x = 12
x = 12/- 4
x = - 3

b) (- 18) : x = 9
x . 9 = - 18
9x = - 18
x = - 18/9
x = - 2

c) - 63 : x = - 1
x . - 1 = - 63
- x = - 63 .(- 1)
x = 63

d) - 40 . x = 120
- 40x = 120
x = 120/- 40
x = - 3

e) x : (- 4) = - 25
x = - 4 . - 25
x = 100

f) x . (- 10) = 200
- 10x = 200
x = 200/- 10
x = - 20

g) x : (- 4) = 0
x = - 4 . 0
x = 0

h) x . (- 1) = 1
- x = 1 .(- 1)
x = - 1

Answer 2

a)x.(-4)=12
x=12/-4
x=-3
b)(-18):x=9
x=-18.9
x=-162
c)-63:x=-1
x=-63.-1
x=63
d)-40.x=120
x=120/-40
x=-3
e)x:(-4)=-25
x=-25.-4
x=100
f)x.(-10)=200
x=200/-10
x=-20
g)x:(-4)=0
x=-4.0
x=0
h)x.(-1)=1
x=1/-1
x=-1.