9/x2 +8x+15=6/x+5+1/x+3 please list each step I don't understand what method to use to solve this problem thank you!

Write this equation in the simple form, I have the solution but I have a difficult time understanding how it works. x = variable * = multiply simple form is the form I want or something similar if incorrect.

How do you solve 5x^2+7x=4x^2+x-18?

The equation x^4 - 5x^2 +6=0 has 4 solutions Please explain all steps that you did and provide a solution. Thank you

Suppose you are given a Rectangular piece of cardboard having length 3x-7 inches and width 5x+2 inches. Then you cut out a square from this piece of cardboard having side length x inches. Find the area of the remaining piece of cardboard expressed in terms of x. Please provide steps in detail and how you are thinking to get to a solution.  Thank you

Proportions can be used to estimate the height of a tree. John is 6 feet tall and his shadow is 10 1/2 feet long. How high is a tree whose shadow is 90 feet long? I have solved it using algorithmic way but how would you solve using a picture or model?

what is the operations that you need to get to zero: 5_4_3_2_1=0

Solve EXACTLY like the example attached.

How do I solve this please and thank you so much. (8v^2+8v+9)+(8v^3+5)

Please show me how to do this