5p + 7 - 5p = -7(p – 3)
5p-5p is 0 so the first step is super easy.
7=-7(p-3)
Now there are different things that you can do but the easiest is probably to divide both sides by -7
7/-7 = -7/-7*(p-3)
-1 = 1(p-3)
-1=p-3
-1+3=p-3+3
2=p
p=2
