x+3/10=17/12+17/20 Tìm x

Đáp án:

Giải thích các bước giải:

`x + 3/10 = 17/12 + 17/20`

`⇒ x + 3/10 = 34/15`

`⇒ x = 34/15 - 3/10`

`⇒ x = 68/30 - 9/30`

`⇒ x = 59/30`

Vậy `x = 59/30`

$\text{@dieulinh2k7~~}$

$x+$$\frac{3}{10}=$ $\frac{17}{12}+$ $\frac{17}{20}$

$⇒$$x+$$\frac{3}{10}=$ $\frac{85}{60}+$ $\frac{51}{60}$

$⇒$$x+$$\frac{3}{10}=$ $\frac{136}{60}$

$⇒$$x$$=$ $\frac{136}{60}-$ $\frac{3}{10}$

$⇒$$x$$=$ $\frac{136}{60}-$ $\frac{18}{60}$

$⇒$$x$$=$$ \frac{118}{60}=$ $\frac{59}{30}$

$\text{Vậy $x=$$\frac{59}{30}$}$