Question

Resolva:
2x=8+x+2 3x+4=-x+3 2x+6=3x+4 5x-1=8x+8 x+2x-2=x+6 8+x-1=3x+4x 7x-1=-2x-6+x 5x+2+x=4x.-3

Answer 1

Resposta:

Explicação passo a passo:

A)

2x=8+x+2

2x - x = 10

x = 10

B)

3x+4=-x+3

3x + x = 3 - 4

4x = - 1

x = - 1/4

C)

2x+6=3x+4

2x - 3x = 4 - 6

- x = - 2 (-1)

x = 2

D)

5x-1=8x+8

- 1 - 8 = 8x - 5x

- 9 = 3x

3x = - 9

x = - 9/3

x = - 3

E)

x+2x-2=x+6

3x - 2 = x + 6

3x - x = 6 + 2

2x = 8

x = 8/2

x = 4

F)

8+x-1=3x+4x

X + 7 = 7x

7 = 7x - x

7 = 6x

6x = 7

x = 7/6

G)

7x-1= - 2x - 6 + x

7x - 1 = - x - 6

7x + x = - 6 + 1

8x = - 5

x = - 5/8

H)

5x+2+x=4x - 3

6x + 2 = 4x - 3

6x - 4x = - 3 - 2

2x = - 5

x = - 5/2