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Anyone good at maths?

Can you help me with this?

7 × 9 > 50 + ....
The answer is 9. But how do you get 9 and how do you work it out?
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Miram · 31-35, F
The answer isn't just nine.

Unless there is more data to narrow it down.
summerlove · 31-35, F
@Miram I did a quiz and the answer was 9 to that equation. I'm guessing the answer was wrong and 13 is right.
Miram · 31-35, F
No. Any number under/ lesser than 13 is right
summerlove · 31-35, F
@Miram It would be 13 because 7 times 9 is 63 and 50 plus 13 is 63, so it equals out.
Miram · 31-35, F
@summerlove 7*9>50+X not equals. The result is greater.
Miram · 31-35, F
> means greater than. Not equals.