3o%x-x+5/6=1/3
Làm gấp giúp với
Xin cảm ơn
tìm x biết :3x[x-1/6]-2x[x-1/3]=2/3
làm nhanh nha , mình cần gấp
`3xx(x-1/6)-2xx(x-1/3)=2/3`
`3x-1/2-2x+2/3=2/3`
`x=2/3-2/3+1/2`
`x=1/2`
`3x(x-1/6)-2x(x-1/3)=2/3`
`3x^2 - 1/2 x- 2x^2 + 2/3x = 2/3`
`x^2+1/6 x =2/3`
`x=(-1 \pm \sqrt97)/12`
các bạn giúp mình tạo một bài thuyết trình tầm 3 phút về chủ đề communication với
xin cảm ơn
(2x+1)/3 - (x-1)/2 < 3
làm giúp mình
\(\dfrac{2x+1}{3}-\dfrac{x-1}{2}< 3\)
\(\Leftrightarrow\dfrac{2\left(2x+1\right)-3\left(x-1\right)}{6}< \dfrac{18}{6}\)
\(\Leftrightarrow2\left(2x+1\right)-3\left(x-1\right)< 18\)
\(\Leftrightarrow4x+2-3x+3< 18\)
\(\Leftrightarrow x< 13\)
Vậy \(S=\left\{x|x< 13\right\}\)
Tìm x :
a) x : 3/6 = 5/6
Giúp mình bài này nhé mình đang cần gấp cảm ơn các bạn
a) x : 3/6 = 5/6
x = 5/6 x 3/6
x= 15/36
x= \(\dfrac{5}{6}\)x\(\dfrac{3}{6}\)
x= \(\dfrac{15}{36}\)
x=\(\dfrac{5}{12}\)
a)13/20+3/5+x=5/6
b)x+1/3=2/5-(-1/3)
c)-5/8-x=-3/20-(-1/6)
d)3/5-x=-1/4+7/10
e)-3/7-x=4/5+-2/3
g)-5/6-x=7/12+-1/3
GIÚP MÌNH VỚI Ạ. MÌNH CẦN GẤP. CẢM ƠN MỌI NGƯỜI!
CÔ NGUYỄN THỊ THƯƠNG HOÀI GIÚP EM VỚI Ạ
a) \(\dfrac{13}{20}+\dfrac{3}{5}+x=\dfrac{5}{6}\)
\(\Rightarrow\dfrac{5}{4}+x=\dfrac{5}{6}\)
\(\Rightarrow x=\dfrac{5}{6}-\dfrac{5}{4}\)
\(\Rightarrow x=\dfrac{-5}{12}\)
b) \(x+\dfrac{1}{3}=\dfrac{2}{5}-\dfrac{-1}{3}\)
\(\Rightarrow x+\dfrac{1}{3}=\dfrac{11}{15}\)
\(\Rightarrow x=\dfrac{11}{15}-\dfrac{1}{3}\)
\(\Rightarrow x=\dfrac{2}{5}\)
c)\(\dfrac{-5}{8}-x=\dfrac{-3}{20}-\dfrac{-1}{6}\)
\(\dfrac{-5}{8}-x=\dfrac{1}{60}\)
\(\Rightarrow x=\dfrac{-5}{8}-\dfrac{1}{60}\)
\(\Rightarrow x=\dfrac{-77}{120}\)
d) \(\dfrac{3}{5}-x=\dfrac{1}{4}+\dfrac{7}{10}\)
\(\Rightarrow\dfrac{3}{5}-x=\dfrac{19}{20}\)
\(\Rightarrow x=\dfrac{3}{5}-\dfrac{19}{20}\)
\(\Rightarrow x=\dfrac{-7}{20}\)
e) \(\dfrac{-3}{7}-x=\dfrac{4}{5}+\dfrac{-2}{3}\)
\(\Rightarrow\dfrac{-3}{7}-x=\dfrac{2}{15}\)
\(\Rightarrow x=\dfrac{-3}{7}-\dfrac{2}{15}\)
\(\Rightarrow x=\dfrac{-59}{105}\)
g) \(\dfrac{-5}{6}-x=\dfrac{7}{12}+\dfrac{-1}{3}\)
\(\Rightarrow\dfrac{-5}{6}-x=\dfrac{1}{4}\)
\(\Rightarrow x=\dfrac{-5}{6}-\dfrac{1}{4}\)
\(\Rightarrow x=\dfrac{-13}{12}\)
4n + 23 : 2n + 3
làm nhanh cho mik với ạ mik cảm ơn
\(\Rightarrow2\left(2n+3\right)+17⋮2n+3\\ \Rightarrow2n+3\inƯ\left(17\right)=\left\{-17;-1;1;17\right\}\\ \Rightarrow2n\in\left\{-20;-4;-2;14\right\}\\ \Rightarrow n\in\left\{-10;-2;-1;7\right\}\)
giải phương trình sau
x+6/x-5 + x-5/x+6 = 2x^2+23x+61/x^2+x-30
6/x-5 + x+2/x-8 = 18/(x-5)(8-x) - 1
3/x+1 - 1/x-2 = 9/(x+1)(2-x)
các bạn ơi .mình cần gấp lắm.các bạn giúp mình nhé.mình cảm ơn
3^6 x 45^4 -15^13 x 5^-9 / 27^4 x 25^3 + 45^6
Giúp mik với ạ !
Mik đang cần gấp lắm , cảm ơn các bn
a)1/2-(x+1/3)=5/6
b)3/4-(x+1/2)=4/5
c)3/35-(3/5+x)=2/7
d)2/3.x=4/27
e)-3/5.x=21/10
GIÚP MÌNH VỚI Ạ. MÌNH CẦN GẤP VÀO SÁNG MAI. CẢM ƠN MỌI NGƯỜI!
a) \(\dfrac{1}{2}-\left(x+\dfrac{1}{3}\right)=\dfrac{5}{6}\)
\(\Rightarrow x+\dfrac{1}{3}=\dfrac{1}{2}-\dfrac{5}{6}\)
\(\Rightarrow x+\dfrac{1}{3}=\dfrac{-1}{3}\)
\(\Rightarrow x=\dfrac{-1}{3}-\dfrac{1}{3}\)
\(\Rightarrow x=\dfrac{-2}{3}\)
b)\(\dfrac{3}{4}-\left(x+\dfrac{1}{2}\right)=\dfrac{4}{5}\)
\(\Rightarrow x+\dfrac{1}{2}=\dfrac{3}{4}-\dfrac{4}{5}\)
\(\Rightarrow x+\dfrac{1}{2}=\dfrac{-1}{20}\)
\(\Rightarrow x=\dfrac{-1}{20}-\dfrac{1}{2}\)
\(\Rightarrow x=\dfrac{-11}{20}\)
c) \(\dfrac{3}{35}-\left(\dfrac{3}{5}+x\right)=\dfrac{2}{7}\)
\(\Rightarrow\dfrac{3}{5}+x=\dfrac{3}{35}-\dfrac{2}{7}\)
\(\Rightarrow\dfrac{3}{5}+x=\dfrac{-1}{5}\)
\(\Rightarrow x=\dfrac{-1}{5}-\dfrac{3}{5}\)
\(\Rightarrow x=\dfrac{-4}{5}\)
d)\(\dfrac{2}{3}.x=\dfrac{4}{27}\)
\(\Rightarrow x=\dfrac{4}{27}:\dfrac{2}{3}\)
\(\Rightarrow x=\dfrac{2}{9}\)
e) \(\dfrac{-3}{5}.x=\dfrac{21}{10}\)
\(\Rightarrow x=\dfrac{21}{10}:\dfrac{-3}{5}\)
\(\Rightarrow x=\dfrac{-7}{2}\)