Question

1/2x + 3/4 = =-3/10

nhanh nhanh giúp e ă

Answer 1

\(\dfrac{1}{2}x=\dfrac{-3}{10}-\dfrac{3}{4}\)

\(\dfrac{1}{2}x=\dfrac{-21}{20}\)

\(x=\dfrac{-21}{20}:\dfrac{1}{2}\)

\(x=\dfrac{-21}{10}\)

Answer 2

`1 / 2 x + 3 / 4 = [-3] / 10`

`1 / 2 x = [-3] / 10 - 3 / 4`

`1 / 2 x = [-21] / 20`

`x = [-21] / 20 : 1 / 2`

`x = [-21] / 10`

Answer 3

\(\Leftrightarrow\dfrac{1}{2}x=-\dfrac{3}{10}-\dfrac{3}{4}\)

\(\Leftrightarrow\dfrac{1}{2}x=-\dfrac{21}{20}\)

\(\Leftrightarrow x=-\dfrac{21}{10}\)