Bài tìm x: x/2 +x/8 = 3/4

X = 1,2

\(\frac{1}{2}x+\frac{1}{8}x=\frac{3}{4}\)

\(\left(\frac{1}{2}+\frac{1}{8}\right)x=\frac{3}{4}\)

\(\frac{5}{8}x=\frac{3}{4}\)

\(x=\frac{6}{5}\)

x/2 + x/8 =3/4

(1/2+ 1/8)x = 3/4

5x/8 = 3/4

x = 3/4 : 5/8

x= 6/5 = 1,2

x= 6/5