I don't understand the process in getting algebra equations

Question

Number of hours.(h)             Tuition (c)

              12.                               $1200

              15.                                 1500

              18.                                 1800

              21.                                 2100

Answer 1

In your case you will need to find a variable- hours that obeying a formula will give you a result.

I see that the formula is

Variable 1 = Hours = H

Result - Tuition

T=10 X H