Question

Me ajudem por favor!
Qual valor de x?
1/x+2=3​
5/x=4
3/x+2/x=1/2
2/x+1=3/2-4/x
2/x+1/2x=4
1/x-2=-5+2/3x
x-1/x=3
2x/x+1=-4
3x+2/x+1=3/2
2x-1/3-4x-1/6=1/3​

Answer 1

Resposta:

Explicação passo-a-passo:

1/x+2=3​

1 + 2x = 3x

2x - 3x = -1

-x = -1 (-)

x = 1

5/x=4

5 = 4x

x = 5/4

x = 1,25

3/x+2/x=1/2

(mmc = 2x)

6 + 4 = x

x = 10

2/x + 1 = 3/2 - 4/x

4 + 2x = 3x - 8

2x - 3x = -8 - 4

-x = -12 (-)

x = 12

2/x + 1/2x = 4

4 + 1 = 8x

8x = 5

x = 5/8

x = 0,625

1/x - 2 = - 5 +2/3x

3 - 6x = -15x + 2

-6x + 15x = 2 - 3

9x = -1

x = -1/9

(x - 1)/x = 3

x - 1 = 3x

x - 3x = 1

-2x = 1

x = -1/2

2x/(x+1)=-4

2x = -4x - 4

2x + 4x = -4

6x = -4

x = -4/6 = -2/3

(3x+2)/(x+1)=3/2

(3x+2) 2 = 3(x+1)

6x + 4 = 3x + 3

6x-3x = 3 - 4

3x = -1

x = -1/3

2x - 1/3 - 4x - 1/6 = 1/3​

(mmc entre 3 e 6 = 6)

12x - 2 - 24x - 1 = 2

-12x = 2 + 3

-12x = 5

x = -5/12