# math

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A class of students do 1 of 4 different after school activities. 1/2 play soccer, 7 take karate, 9 do art or piano. How many students are in the class.

• math -

(1/2)x + 7 + 9 = x

16 = x - (1/2)x

16 = (1/2)x

16/(1/2) = x

16 * (2/1) = x

32 = x

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