Question

-2 = -2/5u

Answer 1

-5/4t = 9

Answer 2

To solve the equation, we need to isolate the variable "u".

Starting with -2 = -2/5u, we can multiply both sides by -5 to get rid of the fraction:

-2(-5) = (-5)(-2/5u)
10 = 2u

Finally, divide both sides by 2 to solve for u:

10/2 = 2u/2
5 = u

Therefore, the solution to the equation -2 = -2/5u is u = 5.

Answer 3

To solve the equation, we need to isolate the variable "t".

Starting with -5/4t = 9, we can multiply both sides by 4/5 to get rid of the fraction:

(-5/4t)(4/5) = 9(4/5)
-1t = 36/5

Finally, divide both sides by -1 to solve for t:

(-1t)/(-1) = (36/5)/(-1)
t = -36/5

Therefore, the solution to the equation -5/4t = 9 is t = -36/5.