multiply by the resipical

1/5p=-3

1/5p=-3

p = -3 divided by 1/5
p = -3 * 5/1
p = -?

-15

Right!

1/5 of -15 = -3

resipical x/7=-5 ?

x/7=-5

x = -5 * 7

-35

Right.

-35/7 = -5