Câu hỏi của Cherry Trần

Question

Tim x

$\left(-1,25\right)+\dfrac{2}{15}-x=2$

Adonis Baldric · Accepted Answer

$\left(-1,25\right)+\dfrac{2}{15}-x=2$

$\Leftrightarrow-\dfrac{5}{4}+\dfrac{2}{15}-x=2$

$\Leftrightarrow-\dfrac{75}{60}+\dfrac{8}{60}-x=2$

$\Leftrightarrow-\dfrac{67}{60}-x=2\Rightarrow x=-\dfrac{67}{60}-2=-\dfrac{187}{60}$Câu trả lời: $\left(-1,25\right)+\dfrac{2}{15}-x=2$

$\Leftrightarrow-\dfrac{5}{4}+\dfrac{2}{15}-x=2$

$\Leftrightarrow-\dfrac{75}{60}+\dfrac{8}{60}-x=2$

$\Leftrightarrow-\dfrac{67}{60}-x=2\Rightarrow x=-\dfrac{67}{60}-2=-\dfrac{187}{60}$

`ღ´Ngốc`ღ´ · Answer

$\left(-1,25\right)+\dfrac{2}{15}-x=2$

$\Leftrightarrow-\dfrac{67}{60}-x=2$

$\Leftrightarrow-x=2+\dfrac{67}{60}=\dfrac{187}{60}$

$\Rightarrow x=-\dfrac{187}{60}$Câu trả lời: $\left(-1,25\right)+\dfrac{2}{15}-x=2$

$\Leftrightarrow-\dfrac{67}{60}-x=2$

$\Leftrightarrow-x=2+\dfrac{67}{60}=\dfrac{187}{60}$

$\Rightarrow x=-\dfrac{187}{60}$

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