x = 5/3
lm nhanh thôi!
\(x.\frac{1}{5}=1-\frac{2}{3}\)
\(x.\frac{1}{5}=\frac{3}{3}-\frac{2}{3}=\frac{1}{3}\)
\(x=\frac{1}{3}.5=\frac{5}{3}\)
\(x\times\frac{1}{5}=1-\frac{2}{3}\)
\(x\times\frac{1}{5}=\frac{1}{3}\)
\(x=\frac{1}{3}\div\frac{1}{5}\)
\(x=\frac{5}{3}.\)
Tĩm x:
1,\(\frac{1}{\left(x+1\right)\left(x+2\right)}+\frac{1}{\left(x+2\right)\left(x+3\right)}+\frac{1}{\left(x+3\right)\left(x+4\right)}+\frac{1}{\left(x+4\right)\left(x+5\right)}=\frac{1}{x+5}\)
2,\(\left(x+\frac{1}{1.3}\right)+\left(x+\frac{1}{3.5}+......+x+\frac{1}{23.25}\right)=11.x+\left(\frac{1}{3}+\frac{1}{9}+\frac{1}{27}+\frac{1}{81}+\frac{1}{243}\right)\)
Giải chi tiết hộ mình nha mình tik cho
Tìm X
A) X+ 1/4= 5/8
B) X-3/5= 1/10
C) Xx 2/7= 6/11
D) X:3/2 = 1/4
Tĩm x thuộc z :
/ 5x - 2 / bé hơn hoặc bằng 3
1.Tìm \(x\):
\(\frac{1}{2}xX+\frac{2}{3}=\frac{5}{2}\)
a, 3/4x X : 1/2 = 4/5
b,( 14-X: 6) x 7= 84
c,Xx 1,5 : 2,4 = 0,3
d,( 2 + 4/3 ) x 7/4 = 5-7/6
a)1/1x3+1/3x5+1/5x7+...+1/Xx(x+3)=99/200
b)1/1x3+1/3x5+1/5x7+...+1/Xx(x+2)
\(\left(\frac{3}{4}Xx\right):\frac{1}{2}=\frac{4}{5}\)
Tìm x
a \(\frac{3}{4}+\frac{1}{4}xX=2\)
b X - \(\frac{2}{3}x\frac{9}{4}=2,5-\frac{1}{2}\)
c \(2xX+\frac{1}{3}=\frac{4}{3}\)
d \(X:\frac{2}{3}+0,75=\frac{9}{4}+3\)
e \(\frac{6}{4}:X+\frac{1}{2}=\frac{9}{4}x\frac{2}{3}\)
f \(Xx\frac{3}{5}-\frac{2}{5}=3\frac{3}{4}-1\)
X - 4 5/6 = 2 1/6 + 5/6 ( hỗn nha nha a b/a)
X + 2/3 = 2 1/2 ( hỗn số )
8,75 x X + 1,25 xX =26,3
5 4/5 + X - 7 7/18 = 15 3/4 ( hỗn số )
