Correction: the problem is Tan(30)= x/ 7.5 root 2
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get a life and hobbies then this question wont even be relevent
In a two step equation, you need to do another step.
well, an equation with one variable is a one step equation and an equation with more than 2 variables is a multi-step equation
The best way is: One step at a time.
It really depends on the equation; except for the most trivial equations, you will usually need more than one step.