Q: Solve a plus 9 equals 21?

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-3

11a+9 = 4a+30 11a-4a = 30-9 7a = 21 Solution: a = 3

12 plus 9 equals 21.

x â‰ 11 9 + x = 21 9 + x - 9 = 21 - 9 x = 12

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

Related questions

-3

11a+9 = 4a+30 11a-4a = 30-9 7a = 21 Solution: a = 3

12 plus 9 equals 21.

-9

3

10

21

21

k equals 5.6

The equation does not have a solution.

x â‰ 11 9 + x = 21 9 + x - 9 = 21 - 9 x = 12

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