Tìm \(\Large x\), biết: \(\Large \dfrac{1}{8} + \dfrac{3}{4} + x = 1\)

Tìm \(\Large x\), biết:

\(\Large \dfrac{1}{8} + \dfrac{3}{4} + x = 1\)

• A.

  \(\Large x = \dfrac{3}{8}\)

• B.

  \(\Large x = \dfrac{1}{8}\)

• C.

  \(\Large x = \dfrac{5}{8}\)

• D.

  \(\Large x = \dfrac{7}{8}\)

\(\Large \dfrac{1}{8} + \dfrac{3}{4} + x = 1\)

\(\Large \dfrac{1}{8} + \dfrac{6}{8} + x = 1\)

\(\Large \dfrac{7}{8} + x = 1\)

\(\Large x = 1 - \dfrac{7}{8}\)

\(\Large x = \dfrac{1}{8}\)