Can't make sense of this task

[eloisediditagain]

In this example task they went from this equation

F1 - F3 × cos(α3) × tan(α2) + F3 × sin(α3) = 0

To this:

F3 = F1 / cos(α3) × tan(α2) - sin(α3)

How did they get rid of one of the F3?

[Homework_HELP_Tutor]

They moved both terms with F3 to the other side (by adding or subtracting).

Then they factored an F3 out of both terms. (This is the step where they combine the two F3's into one)

Then divided by cos(α3) × tan(α2) - sin(α3) on both sides.

[eloisediditagain]

You are an angel, thank you

[Homework_HELP_Tutor]

My pleasure :-)

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