book Maths Puzzle Numerical Ability

I need help solving this problem. I am confused on where to begin. The problem is 3x=6x+27. How would I go about solving this. I am horrible in Math and need your help. It is greatly appreciated.

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book Other Question

Each of three colleges sent one male and one female student to a conference. How many ways can the 6 students be seated in a row of 6 chairs if the students can sit in any order? How do I do this problem? The instructor has learned that for the 30 students in her afternoon class, the ratio of student who do not own a computer to those who do is 2 to 1. How many students in the class own their own computer?