What is 11.3-p over 2.8=1.5?

(11.3 - p)/2.8 = 1.5      multiply both sides by 2.8

11.3 - p = 4.2             add p to both sides and subtract 4.2 from both sides

7.1 = p

First you would multiply both sides by 2.8 so you can cancel out the 2.8 dividing 11.3-p.

Next you would subtract 11.3 from both sides to even out the equation.

Then you would divide both sides by -1 since -p is represented as -1p, to get your final answer.