Https://youtu.be/3y1U0sntOsI
Answer:
I think this is the right answer but last two signs are incorrect
Hope this will help
Step-by-step explanation:
Hey there!!
Given,

Cross multiply.
15 = 2z
Therefore, z= 15/2
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em>
Deal with the numbers and variables step by step
-20/48 = -5/12
t5 / t7 = t^-2 = 1 /t2
u^2 / u^4 = u^-2 = 1/u^2
v^3 / v = v^2
so answer is -5v^2 / 12t^2u^2