The number of moons of Saturn = x
Jupiter has 3 more moons than Saturn. The number of moons of Jupiter = x+3
Uranus has 33 fewer satellites than Saturn. The number of moons of Uranus = x-33
Together they have a total of 150 moons.
[tex]x+x+3+x-33=150 \\
3x-30=150 \ \ \ |+30 \\
3x=180 \ \ \ |\div 3 \\
x=60 \\ \\
x+3=60+3=63 \\ \\
x-33=60-33=27[/tex]
Saturn has 60 satellites, Jupiter has 63 satellites, Uranus has 27 satellites.