a, \(\frac{4}{5}-\frac{1}{3}x=\frac{1}{2}\Rightarrow\frac{1}{3}x=\frac{4}{5}-\frac{1}{2}=\frac{3}{10}\)
\(x=\frac{3}{10}.3=\frac{9}{10}\)
Vậy, \(x=\frac{9}{10}\)
b, \(2014:x=26\left(r=12\right)\) (r là số dư nhé bạn)
Vì \(2014:x=26\) dư \(12\Rightarrow\left(2014-12\right)⋮26\)
\(\Rightarrow2002:x=26\Rightarrow x=\frac{2002}{26}=77\)
Vậy, \(x=77\)
a) 4/5 - 1/3 x X = 1/2
=> 1/3 x X = 4/5 - 1/2
=> 1/3 x X = 3/10
=> X = 3/10 : 3
=> X = 9/10
b) Theo bài ta có :
2014 : X = 26 dư 12
=> 26 x X + 12 = 2014
=> 26 x X = 2014 - 12
=> 26 x X = 2002
=> X = 2002 : 26
=> X = 77.