Question

1/2x+1/4x=5
por favor ayuda

Answer 1

- Tarea:

Resolver la ecuación:

1/2x + 1/4x = 5

- Solución:

✤ Resolvemos la ecuación:

1/2x + 1/4x = 5

4:2.1+4:4.1/4x = 5

2+1/4x = 5

3/4x = 5

x = 5/1 : 3/4

x = 5.4/1.3

x = 20/3

El número es 20/3.

✤ Comprobamos:

1/2x + 1/4x = 5

1/2 . 20/3 + 1/4 . 20/3 = 5

1.20/2.3 + 1.20/4.3 = 5

20/6 + 20/12 = 5

12:6.20+12:12.20/12 = 5

40+20/12 = 5

60/12 = 5

5 = 5