Question

[Do Duc Tuyen]

X+18,7=50,5:2,5

X-2,751=6,3:2,4

Xx4-x:4-24,76=190,48:2

Answer 1

[Trần Thị Ngọc Châu]

a)X + 18,7= 50, 5 :2,5

X +\(\frac{187}{10}\)=\(\frac{505}{10}\):\(\frac{25}{10}\)

X + \(\frac{187}{10}\)=\(\frac{101}{2}:\frac{5}{2}\)

\(X+\frac{187}{10}=\frac{101}{2}\times\frac{2}{5}\)

\(X+\frac{187}{10}=\frac{101}{5}\)

\(X=\frac{101}{5}-\frac{187}{10}\)

\(X=\frac{202}{10}-\frac{187}{10}\)

\(X=\frac{15}{10}\)

\(X=\frac{3}{2}\)

Answer 2

[Trần Thị Ngọc Châu]

b)\(X=6,3:2,4+2,751\)

X =\(\frac{672}{125}\)