`-7/8+2/3:x=3/5×(-5/12)`
`=> -7/8+2/3:x=-1/4`
`=> 2/3:x=-1/4 - (-7/8)`
`=> 2/3:x=-1/4 +7/8`
`=> 2/3:x=5/8`
`=>x= 2/3 : 5/8`
`=>x= 2/3 xx 8/5`
`=>x= 16/15`
tìm x bt a) 1/2-(3/4-5/6)=1-x b)1/4-x=1/3-1/5 c)5/3-3/4+x=7/12 d)1/4-(1/3-x+5/12)=3-(7/0-1/2 giúp mình nhé
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 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|
1/4.12/13+1/4.1/13-12%
*Tìm x bt
a, |2/5:x |=1/4
c,x/24=-1/3-1/8
d, 3/x+3=-7/21
tìm số nguyên x bt -12.(x-5)+7.(3-x)=5
Tìm x bt
a) (x-5) + (x-7) = -12
b) 3x - 44 = -109 -2x
c) 2 ( x-5) - 5 (3+x) =-109
d) (x-3) . (x+5 ) < 0
tìm x bt
a) \(\dfrac{2}{3}\)x - \(\dfrac{7}{6}\) = \(\dfrac{12}{7}\) - \(\dfrac{1}{2}\)
b) ( \(1\dfrac{1}{2}\) + \(\dfrac{5}{3}\) - \(\dfrac{1}{6}\) ) : x = \(\dfrac{3}{4}\) - \(\dfrac{1}{2}\)
tim x số nguyên bt
a. (-12).x=(15).(-4)-12
b.(-5).x+5=(-3).(-8)+6
c.2.(5+3x)+x=31
d.(3x-7)+2.(5-2x)+5x=19
