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

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X=5Y= 92x + 11= ?2(5)+11=?10+11= 21

11 plus 5-10 plus 20-9 plus 14-10 is equal to 21

12 plus 9 equals 21.

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

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

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This is not correct. If x=11, then 9+x=20. In order for 9+x=21 to be correct, x would have to be equal to 12.

X=5Y= 92x + 11= ?2(5)+11=?10+11= 21

11 plus 5-10 plus 20-9 plus 14-10 is equal to 21

12 plus 9 equals 21.

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

11 + 7 + 9 = 27

21

21

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

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

21

No, because 9+10 = 19