Solve each system by subst
1) y= 63-11
-2x-3y=-7...
Mathematics, 03.11.2019 01:31 hillmarilyn70pe8sy6
Solve each system by subst
1) y= 63-11
-2x-3y=-7
Answers: 1
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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?
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