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You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account
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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?
Answers: 1
4x - y/2y +x
- x=3 y=3
...
- x=3 y=3
...
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