1va1/3 + 1va 1/5 x y- 4/5=2va4/5
TA
Những câu hỏi liên quan
b)0,5xx+2/3xx+2/3=7/12
c)3/5-2/15:x=1/2
d)50%xx-2va1/2=2va5/6
e)(2va4/5xx-50):2/3-51
f)(4va1/2-2xx)x3va2/3=11/15
g)02/5-(2va1/2xx-3):15=1/10
h)(3/4+x)x1/1+5va1/6-1va1/6
b)0,5xx+2/3xx+2/3=7/12
c)3/5-2/15:x=1/2
d)50%xx-2va1/2=2va5/6
e)(2va4/5xx-50):2/3-51
f)(4va1/2-2xx)x3va2/3=11/15
g)02/5-(2va1/2xx-3):15=1/10
h)(3/4+x)x1/1+5va1/6-1va1/6
2/9+2va4/9x1/2-3/4:1va1/2
Ta có \(\frac{2}{9}+2\frac{4}{9}\times\frac{1}{2}-3:1\frac{1}{2}\)
\(=\frac{2}{9}+\frac{22}{9}\times\frac{1}{2}-3:\frac{3}{2}\)
\(=\frac{2}{9}+\frac{11}{9}-\frac{6}{3}\)
\(=\frac{13}{9}-\frac{18}{9}\)
\(=\frac{13-18}{9}\)
\(=-\frac{5}{9}\)
Vậy \(x=-\frac{5}{9}\)
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2/3 * X : 1/5 = 1va1/3 :1/4
\(\frac{2}{3}\cdot x:\frac{1}{5}=1\frac{1}{3}:\frac{1}{4}\)
\(\Leftrightarrow\frac{2}{3}\cdot x:\frac{1}{5}=\frac{16}{3}\)
\(\Rightarrow\frac{2}{3}\cdot x=\frac{16}{3}\cdot\frac{1}{5}\)
\(\Rightarrow x=\frac{16}{15}:\frac{2}{3}\)
\(\Rightarrow x=\frac{8}{5}\)
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Ta có :
\(\frac{2}{3}x:\frac{1}{5}=1\frac{1}{3}:\frac{1}{4}\)
\(\frac{2}{3}x:\frac{1}{5}=\frac{1}{3}:\frac{1}{4}\)
\(2x:\frac{1}{5}=\frac{4}{3}\)
\(2x=\frac{4}{3}.\frac{1}{5}\)
\(2x=\frac{4}{15}\)
\(x=\frac{4}{15}:2\)
\(\Rightarrow x=\frac{2}{15}\)
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Xem thêm câu trả lời
tim x
5/6x−3/4=−1/4+2/3
−1va1/2−2/3x=5/6−(−2/5)
(4/5:x+1,5):2/3=−1,5
4/3x−2/3=1/4−x
giup minh nhe minh dang can gap
Tìm x
a)1va 1/2 +x =3/2 -7
b) 1/3 .x +2/5 .(x+1)=0
c) (2x/3 -3 ): (-10) =2/5
d) /x+1/5/ -4=3/2
Tim so tu nhien x biet1va1/5 nhan 1va1/6 nhan 1va1/7....nhan 1va1/2014
X=6/5x7/6x8/7x...x2015/2014
X=6x7x8x...x2015/5x6x7x...x2014
X=2015/5=403
K nhé các bạn ơi.
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1va1\3nhan 1va1\3nhan 1va14 nhan1va1\5 1va1\5 nhan1va1\6nhan1va1\7nhan1va1\8
minh khong hieu ban giai thich cho minh di
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tim so tu nhien x biet 1va1/5 x 1va1/6.......x1va1/2014