tìm x, biết:
\(\left(\frac{5}{12}+\frac{-5}{7}+\frac{-22}{45}+\frac{7}{12}+\frac{-23}{45}\right).\)I x I -9 = - 2
Tìm x:
a) \(\frac{1}{2}\)- \(\frac{3}{5}\) X = 4 - \(\frac{1}{3}\) X
b) (x2 - 5) . x2 = 0
c) 2 . I x - \(\frac{1}{2}\)I = \(\frac{-1}{3}\)+ 5\(\frac{1}{3}\)
d) I 2x - 3 I - x = 6
Tìm x biết (x+1)+(Xx2+2)+(3xX+3)+.....+(99xX+99)=7501
2/5x1/X+1/Xx2+2/5=1/2
giup toi voi ak
Bài 1 : Tìm x, biết:
a) \(\left(\frac{1}{5}-\frac{3}{4}\right)x-1,52=-0,48\)
b,I x - 2 I - 1,5x = \(\frac{3}{4}+\frac{5}{4}x\)
c, \(\frac{5x}{0,75}=x:8\)
d, \(\frac{-6}{3x-2}=\frac{4}{x-1}\)
Giúp mik vs mai mik thi rùi!!!
\(2\frac{1}{3}\)_ 1/6 I -2X + 1/2 I =1/2 . I -2X +1/2I - 2/3
\(7\frac{1}{2}\)-5/3 . I X-1/4I = \(5\frac{3}{2}\)_ 1/3 I X- 1/4I
2IX+1I =1/3 I 2X +2 I+5
1/ Tìm x:
\(2.\left(\frac{1}{2}+\frac{1}{x+1}\right)=\frac{1999}{2001}\)
Tìm x biết
I x-5 I = I x+2 I
1) Tìm x :
a) I 3x-1 I = I 5-2x I
b) I 2x-1 I + x = 2
2) Tìm x để A= 0,75 - I x - 3,2 I có giá trị lớn nhất