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01-10-2021
Mathematics

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The sum of three numbers is 30. Twice the first number, plus 5 times the second number is 112. Three times the first number minus the second number is 66. Write a system of equations to represent the problem

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01-10-2021

Answer:

[tex]x + y + z = 30[/tex]

[tex]2x + 5y = 112[/tex]

[tex]3x - y = 66[/tex]

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