• Matéria: Matemática
  • Autor: Bruno23214
  • Perguntado 7 anos atrás

gente me ajuda com essas equação pf

a)2x+1=3 b)5x=25 c)-3x+3=-6 d)4x=16 e)-10x=100 f) x+4=8 g)-3x-1=-4 h)-4x+8=16
i)5x-6=19
j)-6x=36 k)7x+1= -48 l)9x+1=82 m)5x+7=-8 n)2x-4=22 o)16x=336 p)-8x+4=-60
q)x+5=7 r)3x+1=5

gente pf me ajuda

Respostas

respondido por: Moderate
1

a)2x+1=3

2x+1=3

2x=3-1

2x=2

x=2/2

x=1

b)5x=25

5x=25

x=25/5

x=5

c)-3x+3=-6

-3x+3=-6

-3x=-6-3

-3x=-9

x=-9/-3

x=3

d)4x=16

4x=16

x=16/4

x=4

e)-10x=100

-10x=100

x=100/-10

x=-10

f) x+4=8

x+4=8

x=8-4

x=4

g)-3x-1=-4

-3x-1=-4

-3x=-4+1

-3x=-3

x=-3/-3

x=1

h)-4x+8=16

-4x+8=16

-4x=16-8

-4x=8

x=8/-4

x=-2

i)5x-6=19

5x-6=19

5x=19+6

5x=25

x=25/5

x=5

j)-6x=36

-6x=36

x=36/-6

x=-6

k)7x+1= -48

7x+1=-48

7x=-48-1

7x=-49

x=-49/7

x=-7

l)9x+1=82

9x+1=82

9x=82-1

9x=81

x=81/9

x=9

m)5x+7=-8

5x+7=-8

5x=-8-7

5x=-15

x=-15/5

x=-3

n)2x-4=22

2x-4=22

2x=22+4

2x=26

x=26/2

x=13

o)16x=336

16x=336

x=336/16

x=21

p)-8x+4=-60

-8x+4=-60

-8x=-60-4

-8x=-64

x=-64/-8

x=8

q)x+5=7

x+5=7

x=7-5

x=2

r)3x+1=5

3x+1=5

3x=5-1

3x=4

x=4/3

Espero ter ajudado!

respondido por: ParkJiminchu
0

Resposta:

A)

2x + 1 = 3

2x = 3 - 1

2x = 2

x = 2/2

x = 1

B)

5x = 25

x = 25/5

x = 5

C)

- 3x + 3 = - 6

- 3x = - 6 - 3

- 3x = - 9

x = - 9/-3

x = 9/3

x = 3

D)

4x = 16

x = 16/4

x = 4

E)

- 10x = 100

x = 100/-10

x = - 100/10

x = - 10

F)

x + 4 = 8

x = 8 - 4

x = 4

G)

- 3x - 1 = - 4

- 3x = - 4 + 1

- 3x = - 3

x = - 3/-3

x = 3/3

x = 1

H)

- 4x + 8 = 16

- 4x = 16 - 8

- 4x = 8

x = 8/-4

x = - 8/4

x = - 2

I)

5x - 6 = 9

5x = 9 + 6

5x = 15

x = 15/5

x = 3

J)

- 6x = 36

x = 36/-6

x - 36/6

x = - 6

K)

7x + 1 = - 48

7x = - 48 - 1

7x = - 49

x = - 49/7

x = - 7

L)

9x + 1 = 82

9x = 82 - 1

9x = 81

x = 81/9

x = 9

M)

5x + 7 = - 8

5x = - 8 - 7

5x = - 15

x = - 15/5

x = - 3

N)

2x - 4 = 22

2x = 22 + 4

2x = 26

x = 26/2

x = 13

O)

16x = 336

x = 336/16

x = 21

P)

- 8x + 4 = - 60

- 8x = - 60 - 4

- 8x = - 64

x = - 64/-8

x = 64/8

x = 8

Q)

x + 5 = 7

x = 7 - 5

x = 2

R)

3x + 1 = 5

3x = 5 - 1

3x = 4

x = 4/3

x = 1,333...

Abraço!!!

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