Question

1/u-2/u=-3/4-5/2 solve​

Answer 1

1/u-2/u= -3/4-5/2

1-2/u=-3/4-10/4

1-2/u=3-10/4

-1/u=-7/4

-1/u×4= -7

-4/u=-7

-7u=-4

u=-4/-7

u=4/7

Answer 2

Answer:

$u = \frac{4}{7}$

Step-by-step explanation:

$\frac{1}{u} - \frac{2}{u} = \frac{3}{4} - \frac{5}{2} \\ = > \frac{1 - 2}{u} = \frac{3 - 10}{4} \\ = > \frac{ - 1}{u} = \frac{ - 7}{4} \\ = > - 1 \times 4 = - 7 \times u \\ = > - 4 = - 7u \\ = > u = \frac{ - 4}{ - 7} \\ = > u = \frac{4}{7}$