Question

Consider the equation 3p – 7 + p = 13. What is the resulting equation after the first step in the solution?

Answer 1

The first step in solving 3p - 7 + p = 13 would be to simplify 3p - 7 + p so it can be 4p - 7.

So the resulting equation AFTER the first step would be 4p = 13 + 7.

Answer 2

The equation after the first step would be: 4p-7=13
that's all you can do in one step, and it calls combine like terms. On the next step you use the addition property of equality to add 7 on both side and it would gives you 4p=20.
if they asked to solve for P then you can use the division property of equality to divide 4 on both side. 
p=5