ai kết bạn vơi mình ko gửi cho mình nha
( 1/2 x X - 1/3 x X ) x 1/2 = 5/4
( 1/2 x X - 1/3 x X ) = 5/4 : 1/2
( 1/2 x X - 1/3 x X ) = 5/2
1/2 x X - 1/3 x X = 5/2
( 1/2 - 1/3 ) x X = 5/2
1/6 x X = 5/2
X = 5/2 : 1/6
X = 15
\(\left(\frac{1}{2}\times x-\frac{1}{3}\times x\right)\times\frac{1}{2}=\frac{5}{4}\)
\(\left[\left(\frac{1}{2}-\frac{1}{3}\right)\times x\right]\times\frac{1}{2}=\frac{5}{4}\)
\(\left(\frac{1}{6}\times x\right)=\frac{5}{4}:\frac{1}{2}\)
\(\left(\frac{1}{6}\times x\right)=\frac{5}{2}\)
\(x=\frac{5}{2}:\frac{1}{6}\)
\(x=15\)
Vậy \(x=15\)
x = 15 nhé
tk mk nha mk làm đúng 100% đấy bn ko tin thì thử lại nhé
( 1/2 x X - 1/3 x X ) x 1/2 = 5/4
( 1/2 - 1/3 ) x X x 1/2 = 5/4
( 1/2 - 1/3 ) x X = 5/4 : 1/2
( 1/2 - 1/3 ) x X = 5/2
X = 5/2 : ( 1/2 - 1/3 )
X = 5/2 : 1/6
X = 15