C) Uranus has three moons less than Saturn. Together, they have thirty-three moons. How many

moons does each planet have?

Uranus : 15

Saturn : 18

Step-by-step explanation:

Uranus = U

Saturn = S

1) U = S - 3

2) U + S = 33

1) * U - S = - 3

2) * U + S = 33

1) * + 2) * 2U = 30, so U = 15

Then Saturn will have 18 (because they add up to 33)