a) x÷0,(7)=0,(32):2,(4)
\(x:\frac{7}{9}=\frac{32}{99}:\frac{22}{9}\)
\(x:\frac{7}{9}=\frac{16}{121}\)
\(x=\frac{16}{121}.\frac{7}{9}\)
\(x=\frac{112}{1089}\)
b)0,(17):2,(3)=x:0,(3)
\(\frac{17}{99}:\frac{7}{3}=x:\frac{1}{3}\)
\(\frac{17}{231}=x:\frac{1}{3}\)
x=\(\frac{17}{231}.\frac{1}{3}\)
\(x=\frac{17}{693}\)
Tìm X :
a) X : 0,(7) = 0,(32) : 2,(4)
b) 0,(17) : 2,(3) = X : 0,(3)
Tìm x:
a) x : 0,(7) = 0,(32) : 2,(4)
b) 0,(17) : 2,(3) = x : 0,(3)
Chú ý : ( ) là chu kì
tìm x,biết
a)0,(31)+x=0,3(7) b)0,(4).x=\(\dfrac{5}{6}\)
bai 5: tìm so nguyên x biết
a) (x-2)(x+5) <0
b) (5-x)(x+5) <0
c) (-3x-18)(7-x) >0
Tìm x,y,z:
a)|1-x|+|y-2/3|+|x+z|=0
b)|1/4-x|+|x+y+z|+|2/3+y|=0
c)|15/32-x|+4/25-y|+|z-14/31|=0
Tìm X :
X : 0,(7) = 0,(32) : 2,(4)
GIẢI GIÚP MỀNH VỚI
Tìm x,y,z:
a)|1-x|+|y-2/3|+|x+z|=0
b)|1/4-x|+|x+y+z|+|2/3+y|=0
c)|15/32-x|+4/25-y|+|z-14/31|=0
Tìm x :
a , ( x -2 ) ( x + 7 ) bé hơn bằng 0.
b , ( x - 3 ) ( x - 4 ) bé hơn bằng 0 .
c , ( 3x + 1 ) ( x - 4 ) < 0.
d , ( x - 1 ) ( 2x - 1 ) > 0
Tìm x biết:
a)(x\(^2\)+5).(x-3)>0
b)(-x\(^2\)-17).(x+1)>0
c)-2.(7-x)<0
d)(x-2).(x+2)<0
Giúp mik nha mik tick cho:)))
