Question

6 - Resolva:
a) - x= 9
b)- x = -2
c)-7x = 14
d)-3x = 10
e) -5x = -12
f) - 4x = 8
g) -3x = -9
h) -5x = 15
i) -2x = -10
j) 15= -3x
k) -40 = -5x​

Answer 1

Oi....

6) Resolva:

a)

- x = 9 ⇒ ( - 1)

x = - 9

b)

- x = - 2⇒(- 1)

x = 2

c)

- 7x = 14⇒(- 1)

7x = - 14

x = - 14/7

x = - 2

d)

- 3x = 10⇒( - 1)

3x = - 10

x = - 10/3

e)

- 5x = - 12⇒( - 1)

5x = 12

x = 12/5

f)

- 4x = 8⇒( - 1)

4x = - 8

x = - 8/4

x = - 2

g)

- 3x = - 9⇒(- 1)

3x = 9

x = 9/3

x = 3

h)

- 5x = 15⇒( - 1)

5x = - 15

x = - 15/5

x = - 3

i)

- 2x = - 10⇒( - 1)

2x = 10

x = 10/2

x = 5

j)

15 = - 3x

3x = - 15

x = - 15/3

x = - 5

k)

- 40 = - 5x

5x = 40

x = 40/5

x = 8

Boas lições.​