giúp mình vs sắp đi học r

Đáp án `+` Giải thích các bước giải:

`1) 5/8 + 1/4(2x - 1) = 5/4`

`1/4(2x - 1) = 5/8`

`2x - 1 = 5/2`

`2x = 7/2`

`x = 7/4`

Vậy `x = 7/4`

---

`2) 8/7 - 1/7 : (x/3 - 2) = -1`

`1/7 : (x/3 - 2) = 15/7`

`x/3 - 2 = 1/15`

`x/3 = 31/15`

`=> x * 15 = 31 * 3`

`x * 15 = 93`

`x = 31/5`

Vậy `x = 31/5`

---

`3) 5 1/2 - 1/2(2x + 1) = 1/2`

`1/2(2x + 1) = 5`

`2x + 1 = 10`

`2x = 9`

`x = 9/2`

Vậy `x = 9/2`

---

`4) ((2x)/5 - 1) : (-5) = 1/4`

`(2x)/5 - 1 = -5/4`

`(2x)/5 = -1/4`

`=> 2x * 4 = -5`

`2x = -5/4`

`x = -5/8`

Vậy `x = -5/8`

---

`5) (0,5x - 3/7) : 1/2 = 1 1/7`

`1/2x - 3/7 = 4/7`

`1/2x = 1`

`x = 2`

Vậy `x = 2`

---

`6) ((2x)/3 - 3) : (-10) = 2/5`

`(2x)/3 - 3 = -4`

`(2x)/3 = -1`

`=> 2x = -3`

`x = -3/2`

Vậy `x = -3/2`

                                                 `color{#CC33FF}{K}color{#CC33CC}{a}color{#CC3399}{m}color{#CC3366}{a}color{#993366}{d}color{#993399}{o}` `color{#9933CC}{N}color{#9933FF}{e}color{#6633FF}{z}color{#6633CC}{u}color{#663399}{k}color{#663366}{o}` `color{#333366}{c}color{#333399}{u}color{#3333CC}{t}color{#3333FF}{e}`