−
5
2
−x+(−
10
9
)minus, start fraction, 2, divided by, 5, end fraction, minus, x, plus, left parenthesis, minus, start fraction, 9, divided by, 10, end fraction, right parenthesis where x = \dfrac{4}{5}x=
5
4
x, equals, start fraction, 4, divided by, 5, end fraction.