`(3/4-x)^3=-8`
`(3/4-x)^3=(-2)^3`
`3/4-x=-2`
`x=3/4-(-2)`
`x=11/4`
Ta có: \(\left(\dfrac{3}{4}-x\right)^3=-8\)
nên \(\dfrac{3}{4}-x=-2\)
hay \(x=\dfrac{3}{4}+2=\dfrac{11}{4}\)
Tìm x
a. x - 3/4 = 6 x 3/8
b.7/8 : x = 3 1/2
c.x + 1/2 x 1/3 = 3/4
tìm x biết a, 128 - 3 x ( x + 4 ) = 13 ; b , ( 12x - 4 ^ 3 ) x 8 ^3 = 4 x 8 ^ 4 ; c, [ ( 4x + 28 ) x 23 + 55 ] : 5 = 35
Tìm x biết :
1/-5 +(-3+12-x)=7-(2-8)
2/8-(7-x+3)=-|-7+2|-(-9)
3/-(12-5+9-x)=3-|5-8+2|
4/-(-3-x+8)-(-3+5)=|5-8|
5/-|5-8|-(4-x+5)=4+|3-9|
tìm x
a) -1/8 = 3/x b) x/3 = 3/x c)3/4 . x = 1 và 1/2
d) x - 3/10 = 7/15 : 3/5 e) -4/7 - x = -8/3 . 3/7
f) 4/7 . x - 2/3 = 1/5 g) 2/3 + 1/3 : 3 x = 1/5
h) 2/9 - 7/8 x=1/3 j) (2 và 4/5 x - 50) : 2/3 = 51
Tìm x, biết:
a) (x - 8.25).4 = 0;
b) (x - 50): 4 - 3 = 97;
c) 8.(22 -x) = 8;
d) (x : 3-3)(x: 6-6) = 0.
tìm x biết:
1) - (-3 -x +8) - (3+5) = |5--8|
2) -|5-8| - (4-x+5) = 4 + |3-9|
3) (-10+5) - (4-x) = 12 -(5-6)
Tìm x:
a)5/8/17:x+(-4/17):x+3/1/7:17/1/3=4/11
b)|x|-5/3/7|x|-3/4=2|x|+(-8/7)
Tìm STN x, biết
1) (x + 2) - 2 = 0 2) (x + 3) + 1 = 7
3) (3x - 4) + 4 = 12 4) (5x + 4) - 1 = 13
5) (4x - 8) - 3 = 5 6) 3 + (x - 5) = 7
7) 8 - (2x - 4) = 2 8) 7 + (5x + 2) = 14
9) 5 - (3x - 11) = 1 10) 16 - (8x + 2) = 6
Tìm x biết:
1/ \(\dfrac{3}{5}-x=0,2\)
2/ \(\dfrac{x}{3}-\dfrac{1}{8}=\dfrac{5}{8}\)
3/ \(3\dfrac{1}{3}.x-6\dfrac{3}{4}=3\dfrac{1}{4}\)
tìm x (5x + 3^4) x 6^8 = 6^9 x 3^4
