1/2u-9/5=-7/3

To solve for u, first we need to simplify the equation:

1/2u - 9/5 = -7/3

To get rid of the fractions, we can first find a common denominator for all the fractions, which in this case is 30. Then, multiply each term by 30 to eliminate the fractions:

30 * (1/2u) - 30 * (9/5) = 30 * (-7/3)
15u - 54 = -70

Next, isolate the variable by adding 54 to both sides of the equation:

15u = -70 + 54
15u = -16

Finally, divide by 15 to solve for u:

u = -16/15

Therefore, the solution to the equation is u = -16/15.