25 tháng 8 2022 lúc 22:23
Các câu hỏi tương tự
Tìm x:
a) dfrac{11}{12} - (dfrac{2}{5} + dfrac{3}{4}x) dfrac{2}{3}
b) dfrac{-2}{5} + dfrac{5}{3} . (dfrac{3}{2} - dfrac{4}{15}x) dfrac{-7}{6}
c) dfrac{1}{2} + dfrac{3}{4}x dfrac{1}{4}
Đọc tiếp
Tìm x:
a) \(\dfrac{11}{12}\) - (\(\dfrac{2}{5}\) + \(\dfrac{3}{4}\)x) \(\dfrac{2}{3}\)
b) \(\dfrac{-2}{5}\) + \(\dfrac{5}{3}\) . (\(\dfrac{3}{2}\) - \(\dfrac{4}{15}\)x) = \(\dfrac{-7}{6}\)
c) \(\dfrac{1}{2}\) + \(\dfrac{3}{4}\)x = \(\dfrac{1}{4}\)
Tìm x, biếta)dfrac{1}{2}xx-dfrac{7}{3}dfrac{-5}{6}+dfrac{3}{4}xxb)dfrac{4}{5}xx-dfrac{6}{5}dfrac{1}{2}+dfrac{3}{2}xxc)dfrac{2}{5}x(3xx+dfrac{3}{4})1dfrac{1}{5}-dfrac{1}{3}xxd)2x(3xx
+dfrac{3}{4})+dfrac{4}{5}dfrac{1}{2}-2xx
Đọc tiếp
Tìm x, biết
a)\(\dfrac{1}{2}\)x\(x\)-\(\dfrac{7}{3}\)=\(\dfrac{-5}{6}\)+\(\dfrac{3}{4}\)x\(x\)
b)\(\dfrac{4}{5}\)x\(x\)-\(\dfrac{6}{5}\)=\(\dfrac{1}{2}\)+\(\dfrac{3}{2}\)x\(x\)
c)\(\dfrac{2}{5}\)x(3x\(x\)+\(\dfrac{3}{4}\))=\(1\dfrac{1}{5}\)-\(\dfrac{1}{3}\)x\(x\)
d)2x(3x\(x \)+\(\dfrac{3}{4}\))+\(\dfrac{4}{5}\)=\(\dfrac{1}{2}\)-2x\(x\)
a) 2dfrac{1}{2} - x + dfrac{4}{5} dfrac{2}{3} - (-dfrac{4}{7} )
b) -dfrac{4}{7} - x dfrac{3}{5} - 2x
c) (dfrac{3}{8} - dfrac{1}{5} ) + (dfrac{5}{8} - x) dfrac{1}{5}
Đọc tiếp
a) \(2\dfrac{1}{2}\) - x + \(\dfrac{4}{5}\) = \(\dfrac{2}{3}\) - (\(-\dfrac{4}{7}\) )
b) \(-\dfrac{4}{7}\) - x = \(\dfrac{3}{5}\) - 2x
c) (\(\dfrac{3}{8}\) - \(\dfrac{1}{5}\) ) + (\(\dfrac{5}{8}\) - x) = \(\dfrac{1}{5}\)
2. Tìm x
a. \(\dfrac{4}{5}-3.\left|x\right|=\dfrac{1}{5}\) b. \(4x-\dfrac{1}{2}x+\dfrac{3}{5}x=\dfrac{4}{5}\)
c. (2x-8)(10-5x)=0 d. \(\dfrac{3}{4}+\dfrac{1}{4}\left|2x-1\right|=\dfrac{7}{2}\)
Tìm số nguyên x, biết:
a) -4dfrac{3}{5}. 2dfrac{4}{3} x -2dfrac{3}{5} : 1dfrac{6}{15}
b) -4dfrac{1}{3}.(dfrac{1}{2}-dfrac{1}{6}) x - dfrac{2}{3}.(dfrac{1}{3} - dfrac{1}{2} - dfrac{3}{4})
Đọc tiếp
Tìm số nguyên x, biết:
a) \(-4\dfrac{3}{5}\). \(2\dfrac{4}{3}\) < x < \(-2\dfrac{3}{5}\) : \(1\dfrac{6}{15}\)
b) \(-4\dfrac{1}{3}\).(\(\dfrac{1}{2}\)-\(\dfrac{1}{6}\)) < x < - \(\dfrac{2}{3}\).(\(\dfrac{1}{3}\) - \(\dfrac{1}{2}\) - \(\dfrac{3}{4}\))
a )dfrac{x}{3} dfrac{y}{5} dfrac{z}{7} và 3x - 2z 15b)dfrac{x}{5} dfrac{4}{3} dfrac{z}{2} và 2x -3y 100c)dfrac{x}{-3} dfrac{4}{-5} dfrac{z}{-4} và 3z -2x 36d) dfrac{x}{2} y ^{dfrac{z}{3}} và 3x -2 + 4z 16
Đọc tiếp
a )\(\dfrac{x}{3}\) = \(\dfrac{y}{5}\) = \(\dfrac{z}{7}\) và 3x - 2z =15
b)\(\dfrac{x}{5}\) = \(\dfrac{4}{3}\) = \(\dfrac{z}{2}\) và 2x -3y =100
c)\(\dfrac{x}{-3}\) = \(\dfrac{4}{-5}\) \(\dfrac{z}{-4}\) và 3z -2x =36
d) \(\dfrac{x}{2}\) = y = \(^{\dfrac{z}{3}}\) và 3x -2 + 4z =16
a,2.(dfrac{1}{4}+x)^3(-dfrac{27}{4})b,(x+dfrac{1}{2})^3:3dfrac{-1}{81}c,(dfrac{2}{3}-x)^21:dfrac{4}{9}d,(2x-dfrac{1}{5})^2+dfrac{16}{25}1e,(dfrac{2}{5}-3x)^2-dfrac{1}{5}dfrac{4}{25}
Đọc tiếp
a,2.(\(\dfrac{1}{4}\)+x)\(^3\)=(\(-\dfrac{27}{4}\))
b,(x+\(\dfrac{1}{2}\))\(^3\):3=\(\dfrac{-1}{81}\)
c,(\(\dfrac{2}{3}\)-x)\(^2\)=1:\(\dfrac{4}{9}\)
d,(2x-\(\dfrac{1}{5}\))\(^2\)+\(\dfrac{16}{25}\)=1
e,(\(\dfrac{2}{5}\)-3x)\(^2\)-\(\dfrac{1}{5}\)=\(\dfrac{4}{25}\)
Tìm x :
1) \(\left(-0,75x+\dfrac{5}{2}\right).\dfrac{4}{7}-\left(-\dfrac{1}{3}\right)=-\dfrac{5}{6}\)
2) \(\left(4x-9\right)\left(2,5+\dfrac{-7}{3}x\right)=0\)
3) \(\left|x-\dfrac{3}{4}\right|-\dfrac{1}{2}=0\)
4)\(\left(\dfrac{3}{5}-\dfrac{2}{3}x\right)^3=\dfrac{-64}{125}\)
Tìm $x$, biết:
$a)$ $\dfrac{7}{4} x- \dfrac{3}{2}=- \dfrac{4}{5}$
$b)$ $\Big(x- \dfrac{1}{4}\Big)^2= \dfrac{5}{36}-\Big( \dfrac{1}{3}\Big)^2$
$c)$ $- x + \dfrac{3}{2}=x+\dfrac{3}{5}$
Tìm x, biết:
a) \(\dfrac{2}{3}\)x - \(\dfrac{1}{2}\)x = \(\left(-\dfrac{7}{12}\right)\) . \(1\dfrac{2}{5}\)
b) \(\left(\dfrac{1}{5}-\dfrac{3}{2}x\right)^2\) = \(\dfrac{9}{4}\)
c) (1,25 - \(\dfrac{4}{5}\)x)3 = -125