Question: Let x and y be two odd integers. Prove algebraically that 3 a ? + 7 y + 4 must be even. For full credit,

Let x and y be two odd integers. Prove algebraically that 3a?+7y +4 must be even. For full credit, be sure to use the formal definitions of even/odd numbers, and show all your algebra. You may use the Canvas equation editor, the superscript tool, or just write superscripts with ^.

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