\(2x-\text{[}x-\left(\frac{3}{4}-4\right)\text{]}=\frac{13}{16}\)
<=>\(2x-\text{[}x-\left(\frac{-13}{4}\right)\text{]}=\frac{13}{16}\)
<=> \(2x-x-\frac{13}{4}=\frac{13}{16}\)<=>\(x-\frac{13}{4}=\frac{13}{16}\)
<=>\(x=\frac{65}{16}\)
\(v\text{ậy}x=\frac{65}{16}\)
Tìm số tự nhiên x :
a) 2x + 3.(x+4) - 14 =8
b) x + 2.x + 3.x = 4.x + 16
c) 2.(x+1) + 3.(x + 5) = 0
d) ( x - 3 ).( x - 5 ) = 0
e) (2x - 40). (15 - 3.x) = 0
f) (3.x+6).(28-2.x) + 13 = 13
a, 2x-3 / x+1 = 21/16
b, x-3 / x-5 = 6/7
c, 2x + 3 / 6 = 7x - 13 / 15
d, 2-x / 4 = 3x - 1 / -3
tìm x
a, x + 1/2x - 25%x = 10
b, x+x - 1+ x - 2 + x -3 + x - 4 + ... + x-50 = 255
c, 1 + 5 + 9 + 13 + 16 + ... + x =501501
tính
( 1/3 - 1/7 - 1/13 ) / ( 2/3 - 2/7 - 2/13 ) x ( 3/4 - 3/16 - 3/64 - 3/256 ) / ( 1- 1/4 - 1/16 - 1/64 ) + 5/8
Tìm x, biết:
a) 52/2x-1=13/30
b) 1,2/30=3x+4/50
c) 7/5=2x+1/3x+5
d) 2x-3/x+1=21/16
e) 2x+3/6=7x-3/15
f) -0,09/x=x/-25
k) 2x+1/5=3/2x-1
Mình đang cần gấp
Ai làm nhanh nhất mình tick cho
Tìm x nguyên biết (3/2)^2x-1=(3/4)^5x-4; 16/2x=2
Tìm x,y biết:
a) 3 4 x + 1 5 = 1 6 b) 1 3 + 1 2 : x = − 4 c) c ) x − 2 3 x + 1 4 = 0
d) 2 x − 3 3 4 x + 1 = 0 d) 2 3 x + 1 2 − 5 3 = 0 e) 2 x − 0 , 3 = 1 , 5
f) x . − 3 5 3 = − 3 5 5 g) x : 1 3 2 = 1 3 3 h) x 26 = 21 39
k) 1 3 x = 2 3 1 6 l) 77 7 9 5 9 = x 0 , 03 m) 2 2 3 0 , 03 = 1 7 9 x
n) 2 x − 3 2 = 16 o) 3 x − 2 5 = − 243
TÌM X
câu 1: (1/3 + 1/6) . 2^x+3 - 2^x = 2^22 - 2^20
câu 2: (1/2-1/6).3^x+3^x+2=3^16+3^13
câu 3: (1/2 - 1/6) . 3^x+4 - 4 . 3^x = 3^16 - 4 . 3^13
mình cần gấp. mn lm ơn giúp mifh vs ạ. !!!huhuhu
Tìm x, biết:
1 ) − x − 3 4 = − 8 11
2 ) 5 7 − x = 1 6
3 ) x + 1 3 = 2 5 − − 1 3
4 ) 5 7 − 1 13 + 0 , 25 = 3 1 2 − x
