Find an equation using absolute value that has the given solutions,
a. two solutions, 22 and 22
b. two solutions, -51 and 5
c. two solutions, -9 and 39
d. one solution, 18

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

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