Question

a) 16x – 1 = 12x + 3

b) 3x – 2 = 4x + 9


c) 5x -3 + x = 2x + 9

d) 17x – 7x = x + 18


e) x + x – 4 = 17 – 2x + 1


f) x + 2x + 3 – 5x = 4x – 9


g) 5x + 6x – 16 = 3x + 2x - 4

h) 5x + 4 = 3x – 2x + 4

Answer 1

Resposta:

Explicação passo-a-passo:

a) 16x – 1 = 12x + 3

16x - 12x = 3 + 1

4x = 4

x = 1

b) 3x – 2 = 4x + 9

3x - 4x = 9 + 2

- x = 11

x = - 11

c) 5x -3 + x = 2x + 9

5x + x - 2x = 9 + 3

4x = 12

x = 3

d) 17x – 7x = x + 18

17x - 7x - x = 18

9x = 18

x = 2

e) x + x – 4 = 17 – 2x + 1

x + x + 2x = 17 + 1 + 4

4x = 22

x = 5,5

f) x + 2x + 3 – 5x = 4x – 9

x + 2x - 5x - 4x = - 9 - 3

- 6x = - 12

x = 2

g) 5x + 6x – 16 = 3x + 2x - 4

5x + 6x - 3x - 2x = - 4 + 16

6x = 12

x = 2

h) 5x + 4 = 3x – 2x + 4

5x - 3x + 2x = 4 - 4

0x = 0

Answer 2

Resposta:

a) 16x - 1 = 12x + 3

16x - 12x = 3 - 1

4x = 2

x = 2/4

x = 0,5

______

b) 3x - 2 = 4x + 9

3x - 4x = 9 + 2

-x = 11

-x/-1 = 11/-1

x = -11

______

c) 5x -3 + x = 2x + 9

5x + x - 2x = 9 - 3

6x - 2x = 6

4x = 6

x = 6/4

x = 1,5

______

d) 17x – 7x = x + 18

17x - 7x - x = 18

9x = 18

x = 18/9

x = 2

______

e) x + x – 4 = 17 – 2x + 1

x + x + 2x = 17 + 1 + 4

4x = 22

x = 22/4

x = 5,5

______

f) x + 2x + 3 – 5x = 4x – 9

x + 2x - 5x - 4x = -9 - 3

3x - 9x = -12

-6x = -12

x = -12/-6

x = 2

______

g) 5x + 6x – 16 = 3x + 2x - 4

5x + 6x - 3x - 2x = -4 + 16

11x - 5x = 12

6x = 12

x = 12/6

x = 2

______

h) 5x + 4 = 3x – 2x + 4

5x + 2x - 3x = 4 - 4

7x - 3x = 0

4x = 0

x = 0/4

x = 0