Hello, mathguy80!

I am able to solve them okay most of the time.

But my final answer answer doesn't match the given one.

I solved up to:

. .

. .

The required answer is: .

Your work is excellent . . . and your answer is correct!

Their answer is completely arbitrary.

. . both answers can be written in a number of ways.

Your answer: .

Their answer: .

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

I can take their answer and simplfy itbeyond all recognition. . .

. . . . . . . .

Divide numerator and denominator by

. . . .