Question

2. Encontre o valor de “x” nas seguintes equações:

a) 6x = 2x + 16

b) 2x – 5 = x + 1

c) 2x + 3 = x + 4

d) 5x + 7 = 4x + 10

e) 4x – 10 = 2x + 2

f) 4x – 7 = 8x – 2

g) 2x + 1 = 4x – 7

h) 9x + 9 + 3x = 15

i) 16x – 1 = 12x + 3

j) 3x – 2 = 4x + 9

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

m) 17x – 7x = x + 18

n) x + x – 4 = 17 – 2x + 1

o) x + 2x + 3 – 5x = 4x – 9

p) 5x + 6x – 16 = 3x + 2x - 4

q) 5x + 4 = 3x – 2x + 4

me ajudem rápido quero a resposta até depôs ​

Answer 1

a) 6x = 2x + 16

6x-2x=16

4x=16

x=16/4

x=4

b) 2x – 5 = x + 1

2x-x=1+5

x=6

c) 2x + 3 = x + 4

2x-x=4-3

x=1

d) 5x + 7 = 4x + 10

5x-4x=10-7

x=3

e) 4x – 10 = 2x + 2

4x-2x=2+10

2x=12

x=12/2

x=6

f) 4x – 7 = 8x – 2

4x-8x=-2+7

-4x=5 (-1)

4x=-5

x=-5/4

x=-1,25

g) 2x + 1 = 4x – 7

2x-4x=-7-1

-2x=-8 (-1)

2x=8

x=8/2

x=4

h) 9x + 9 + 3x = 15

9x+3x=15-9

12x=6

x=6/12

x=2

i) 16x – 1 = 12x + 3

16x-12x=3+1

4x=4

x=4/4

x=1

j) 3x – 2 = 4x + 9

3x-4x=9+2

-x=11 (-1)

x=-11

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

5x+x-2x=9+3

4x=12

x=12/4

x=3

m) 17x – 7x = x + 18

17x-7x-x=18

9x=18

x=18/9

x=2

n) x + x – 4 = 17 – 2x + 1

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

4x=22

x=22/4

x=5,5

o) x + 2x + 3 – 5x = 4x – 9

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

-6x=-12 (-1)

6x=12

x=12/6

x=2

p) 5x + 6x – 16 = 3x + 2x - 4

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

6x=12

x=12/6

x=2

q) 5x + 4 = 3x – 2x + 4

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

4x=0

x=0/4

x=0

Espero ter ajudado!!!

Answer 2

Resposta:

Explicação passo-a-passo:

a) 6x = 2x + 16

6x - 2x = 16

4x = 16

x = 16/4

x = 4

b) 2x – 5 = x + 1

2x - x = 1+5

x = 6

c) 2x + 3 = x + 4

2x - x = 4-3

x = 1

d) 5x + 7 = 4x + 10

5x - 4x = 10-7

x = 3

e) 4x – 10 = 2x + 2

4x - 2x = 2+10

2x = 12

x = 12/2

x = 6

f) 4x – 7 = 8x – 2

- 7+2 = 8x - 4x

- 5 = 4x

4x = - 5

x = - 5/4

g) 2x + 1 = 4x – 7

1+7 = 4x-2x

8 = 2x

2x = 8

x = 8/2

x = 4

h) 9x + 9 + 3x = 15

12x = 15-9

12x = 6 (:6)

2x = 1

x = 1/2

i) 16x – 1 = 12x + 3

16x - 12x = 3+1

4x = 4

x = 4/4

x = 1

j) 3x – 2 = 4x + 9

- 2 - 9 = 4x - 3x

- 11 = x

x = - 11

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

6x - 3 = 2x + 9

6x - 2x = 9+3

4x = 12

x = 12/4

x = 3

m) 17x – 7x = x + 18

10x - x = 18

9x = 18

x = 18/9

x = 2

n) x + x – 4 = 17 – 2x + 1

2x-4 = 18 - 2x

2x+2x = 18+4

4x = 22 (:2)

2x = 11

x = 11/2

o) x + 2x + 3 – 5x = 4x – 9

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

- 2x + 3= 4x - 9

-4x-2x = -9-3

- 6x = -12 (-1)

6x = 12

x = 12/6

x = 2

p) 5x + 6x – 16 = 3x + 2x - 4

11x - 16 = 5x-4

11x - 5x = 16-4

6x = 12 (:6)

x = 2

q) 5x + 4 = 3x – 2x + 4

5x + 4 = x + 4

5x-x = 4-4

4x = 0

x = 0/4

x = 0