Q: What is 12 plus 9 equals?

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9 divided by 9 equals 1, and 3 times 12 equals 36. 1 plus 36 equals 37.

x=-24

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

3 + 9 = 12

do you mean what is 3+6+9-12? The answer is 6: 3+6=9 9+9=18 18-12=6 :)

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9 divided by 9 equals 1, and 3 times 12 equals 36. 1 plus 36 equals 37.

x=-24

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

do you mean what is 3+6+9-12? The answer is 6: 3+6=9 9+9=18 18-12=6 :)

3 + 9 = 12

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29 (unspecified units) + 9 cm

Given ef is the midsegment of isosceles trapezoid abcd bc equals 17x ef equals 22.5x plus 9 and ad equals 30x plus 12 find ad?