Question

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

Answer 1

-21 / 10

Answer 2

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

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

`1/2x = -21/20`

`=> x = -21/10`

Vậy `x = -21/10`

Answer 3

-21/10

Answer 4

-21/ 10

Answer 5

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

Answer 6

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

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

\(\dfrac{1}{2}x=\left(-\dfrac{6}{20}\right)-\dfrac{15}{20}\)

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

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

   \(x=\left(-\dfrac{21}{20}\right)\cdot2\)

   \(x=-\dfrac{42}{20}\)

   \(x=-\dfrac{21}{10}\)