Câu hỏi của Anh Thư Nguyễn

Question

Tìm x

$\frac{-5}{6}x-1\frac{13}{19}:3\frac{7}{19}-\left(-0,12\right)$$=\left(\frac{-1}{2}\right)^2$

Khánh Ngọc · Accepted Answer

$-\frac{5}{6}x-1\frac{13}{19}:3\frac{7}{19}-\left(-0,12\right)=\left(-\frac{1}{2}\right)^2$

$\Rightarrow-\frac{5}{6}x-\frac{32}{19}:\frac{64}{19}+0,12=\frac{1}{4}$

$\Rightarrow-\frac{5}{6}x-\frac{1}{2}=\frac{1}{4}-0,12=\frac{13}{100}$

$\Rightarrow-\frac{5}{6}x=\frac{63}{100}$

$\Rightarrow x=-\frac{189}{250}$

Câu trả lời:

$-\frac{5}{6}x-1\frac{13}{19}:3\frac{7}{19}-\left(-0,12\right)=\left(-\frac{1}{2}\right)^2$

$\Rightarrow-\frac{5}{6}x-\frac{32}{19}:\frac{64}{19}+0,12=\frac{1}{4}$

$\Rightarrow-\frac{5}{6}x-\frac{1}{2}=\frac{1}{4}-0,12=\frac{13}{100}$

$\Rightarrow-\frac{5}{6}x=\frac{63}{100}$

$\Rightarrow x=-\frac{189}{250}$

ミ★luffy☆mũ☆rơm★彡 · Answer

-5/6x-32/19:64/19+3/25=1/4

-5/6x-32/19×19/64+3/25=1/4

-5/6x-1/2+3/25=1/4

-5/6x-31/50=1/4

-5/6x=1/4+31/50

-5/6x=87/100

x=87/100:-5/6

x=87/100×-6/5

x=-261/250

vậy x=-261/250