Question

Tìm x biết [(x 1/3)+1/6] -1/2 : 2 = 3/4

Answer 1

\(\left[\left(x\times\frac{1}{3}\right)+\frac{1}{6}\right]-\frac{1}{2}\div2=\frac{3}{4}\)

\(\left[\left(x\times\frac{1}{3}\right)+\frac{1}{6}\right]-\frac{1}{2}=\frac{3}{4}\times2\)

\(\left[\left(x\times\frac{1}{3}\right)+\frac{1}{6}\right]-\frac{1}{2}=\frac{3}{2}\)

\(\left(x\times\frac{1}{3}\right)+\frac{1}{6}=\frac{3}{2}+\frac{1}{2}\)

\(\left(x\times\frac{1}{3}\right)+\frac{1}{6}=2\)

\(x\times\frac{1}{3}=2-\frac{1}{6}\)

\(x\times\frac{1}{3}=\frac{11}{6}\)

\(x=\frac{11}{6}\div\frac{1}{3}\)

\(\Rightarrow x=\frac{11}{2}\)