1. Tìm x, biết:
a) \(\frac{2}{5}x-x=\frac{\left(-2018\right)^0}{5^2}\)
b) \(\left|-1\frac{1}{2}x+2x\right|-\frac{7}{4}=0,5\)
c) x + \(\left(x+\frac{2}{7}\right)+\frac{-5}{11}=\frac{4}{11}\)
d) |0,25x - 20o/o| \(+\frac{3}{8}=1\frac{3}{8}\)
Bài 1: Tìm x a) \(\frac{1}{7}\cdot\left|x\right|-\frac{4}{5}=\frac{1}{5}\) b) \(\left(\frac{3}{4}-x\right)^3=-27\) c) \(\frac{x-1}{-2}=\frac{-8}{x-1}\) d) \(\left|2x-3\right|+4\cdot\left(-5\right)^2=101\)
\(\frac{2}{3}x-\frac{1}{2}x=\frac{5}{12}\)
\(\left(x+\frac{1}{2}\right).\left(\frac{2}{3}-2x\right)=0\)
\(\frac{-3}{x-1}\)
\(\frac{-4}{2x-1}\)
\(\frac{3x+7}{x-1}\)
\(\frac{4x-1}{3-x}\)
m.n làm hộ e nhanh vs ạ... do e ms học lớp 5 lên lớp 6 e còn chưa bt... m.n giúp vs
Bài 1: Tìm x, biết d) \(\left(4\frac{2}{3}-2x\right).2\frac{1}{4}=1\frac{1}{2}\) e) \(\frac{3}{5}+\frac{4}{9}:x=\frac{2}{3}\) f) \(\frac{7}{35}:\left(x-\frac{1}{3}\right)=-\frac{2}{25}\)
Tìm x
a) 2x-\(\frac{2}{3}\)-7x = \(\frac{3}{2}\)-1
b) \(\frac{3}{2}\)x-\(\frac{2}{5}\)=\(\frac{1}{3}\)x - \(\frac{1}{4}\)
c)\(\frac{2}{3}\) - \(\frac{5}{3}\)x = \(\frac{7}{10}\)x +\(\frac{5}{6}\)
d) 2x -\(\frac{1}{4}\)= \(\frac{5}{6}\) - \(\frac{1}{2}\)x
e) 3x -\(\frac{5}{3}\)= x-\(\frac{1}{4}\)
Giúp mk với mn người ơiiii
TÌM X
a, 3 ( x + 2) - 7 ( 2x -1 ) = x - 5 ( 1 + x)
b, ( 2x - 1 ) - 3( 1 - 2x ) x - 8
Bài 1 Tìm x ,y biết
a, 2| 2x -3 | =1
b,7,5 -3 | 5 -2x | = -4,5
c, | 3x-4 | + | 3y +5 |=0
Bài 2 Tìm x biết
a, \(\left|\frac{5}{3}x\right|\) =\(\left|-\frac{1}{6}\right|\)
b, \(\left|\frac{3}{4}x-\frac{3}{4}\right|-\frac{3}{4}=\left|-\frac{3}{4}\right|\)
c, \(\left|x+\frac{3}{5}\right|-\left|x-\frac{7}{3}\right|=0\)
Bài 3 Tìm x biết
a,| x |+| x+2 |=0
b,\(\left|x\left(x^2-\frac{5}{4}\right)\right|=x\)
Tìm x để sau số nguyên: A=2/x B=3/1-x C=5/2x+7 D=x+2/x+1 E=x+4/x-1 G=2(x+3)/2x -1 H=11x -15/x+2 I=9x -1/3x-2 Mình đang cần gấp!!!!!!!
tim x
a, ( 3-2x ) . ( 1/3 - 1/2 ) ^2 + 4 . (7-5x ) = 9-2x
b, 7 - 3x 1 - 3x
_______ = ______
4 + x x - 5
Tìm x :
a) \(1+3+5+7+...+\left(2x-1\right)=750\)
b) \(1+5+9+13+17+...+x=501501\)