Question

5/9 + x/-1 = -1/3

Answer 1

\(\dfrac{5}{9}+\dfrac{x}{-1}=\dfrac{-1}{3}\\ \dfrac{5}{9}-x=-\dfrac{1}{3}\\ x=\dfrac{5}{9}+\dfrac{1}{3}\\ x=\dfrac{5}{9}+\dfrac{3}{9}\\ x=\dfrac{8}{9}\) 

Answer 2

     \(\dfrac{5}{9}\) + \(\dfrac{x}{-1}\) = \(\dfrac{-1}{3}\)

⇔ \(\dfrac{5}{9}\) + \(\dfrac{9x}{-9}\) = \(\dfrac{-3}{9}\)

⇔ \(-9x=-3-5\)

⇔ \(9x=8\)

⇔ \(x=\dfrac{8}{9}\) .

Vậy \(x=\dfrac{8}{9}\) .