Number puzzles for kids, only for genius one’s 🙂

IF Star + Ball= 9
Star – Ball = 3
Then: Ball*Start = ?
Answer is 18
How?
Star + Ball + Star – Ball = 9 + 3
2*Start = 12;
Star = 6;
Ball = 9-6 = 3;
Ball * Star = 3*6 = 18.
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IF Star + Ball= 9
Star – Ball = 3
Then: Ball*Start = ?
How?
Star + Ball + Star – Ball = 9 + 3
2*Start = 12;
Star = 6;
Ball = 9-6 = 3;
Ball * Star = 3*6 = 18.
ball=3
star=6
3×6=18
18