The answer is p = (a - 4)/3
It would be written as
T < 5, but there would be a line underneath the less then sign
The 5 is the coefficient...
To estimate, you should round some of the numbers to the closest number (rounding up or down). It will be more accurate the less you round. In this problem, we should round -5 1/4 to -5 since it is the closest. -5*-3/2 = 7.7. You will end up with -3/2x (-5 1/4) ≈ 7.5x
≈ means approximately equal.