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What is 21 plus -9 equals?

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Anonymous

∙ 16y ago
Updated: 10/17/2024

12

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Justus Rau ∙

Lvl 10
∙ 5y ago
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Related Questions

What is 12 plus 9 equals?

12 plus 9 equals 21.


Solve a plus 9 equals 21?

A + 9 = 21 A = 21 - 9 A = 12


5 plus 7 plus 9 equals?

21


What is 9 plus 5 plus 7 equals?

21


What Is 9 plus x equals 21 for x equals 11?

x ≠ 11 9 + x = 21 9 + x - 9 = 21 - 9 x = 12


What is the answer for x plus 9 plus 5x equals 21 plus 2x?

If: x+9+5x = 21+2x Then: x = 3


Can you mathematically prove 9 plus 10 equals 21?

No you can not prove that 9 +10 = 21.


What is the answer to the equation 2x plus 3 equals 9 x equals?

21


Can 10 plus 9 equal 21?

No, 10 plus 9 cannot equal 21. The correct sum of 10 and 9 is 19. The statement that 10 plus 9 equals 21 is mathematically incorrect.


9 plus ten equals 21?

No, because 9+10 = 19


How do you work out b plus 9 equals 21?

b + 9 = 21 Take the + 9 across the other side of the equals sign. a plus becomes a minus. b = 21 - 9 so... b = 12. This can be checked by setting b to 12 in the first equation b + 9 = 21 12 + 9 = 21 which is correct.


Why do people say 9 plus 10 equals 21?

9+10 =21 is sated from a popular vine

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