Since there is nothing attached for me to help you I looked for a website that can find the answer with an explanation. It is called quickmath it’s like a math calculator . Hopefully that helps you .
Answer: ill try looking this one up to help u just add me on snap its johni_spurgeon
Step-by-step explanation:
2x + 5y + 7x
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Combine like terms
(2x + 7x)
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9x + 5y
so x=5
substituting for x in the equation we get:

Ans C: 16