Question

how do I find -xtan(0.3x)=8.57 algebraically? (without a graphing calculator)

Answer 1

Specifically the answer of 7.7 ( I know there are multiple answers)

Answer 2

What is the process?

Answer 3

I doubt you can, not in a usual algebraic method. Not sure you could separate the x from the tangent.

Answer 4

I there anyway of using derivatives?

Answer 5

Not sure how derivatives would help...

Answer 6

Don't think the problem equation has any real roots.
Refer to the attached plot.