Question

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Answer 1

Resposta:

a) x+9= -11

x= -11-9

x= -20

b) x-4= -9

x= -9+4

x= -5

a) 4x=20

x=20/4

x=5

b) -5x=30.(-1)

5x= -30

x= -30/5

x= -6

c) 7x= -35

x= -35/7

x= -5

d) 2x=10

x=10/2

x=5

a) 6x+12=24

6x=24-12

6x=12

x=12/6

x=2

b) 3x-9=9

3x= 9+9

3x=18

x=18/3

x=6

Answer 2

Resposta:

Explicação passo a passo:

2)

A.

X+9= - 11

x = - 11-9

x = - 20

___________

B.

X - 4 = - 9

x = - 9 + 4

x = - 5

____________

3)

A)

4x = 20

X = 20/4

X = 5

___________

B)

- 5x = 30 (-1)

5x = - 30

X = - 30/5

X = - 6

_________

C)

7x = - 35

X = - 35/7

X = - 5

_________

D)

2x = 10

X = 10/2

x = 5

_________

4)

A)

6x+12=24

6x = 24-12

6x = 12

X = 12/6

X = 2

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B)

3x - 9 = 9

3x = 9+9

3x = 18

X = 18/3

X = 6

=============