Consider the system 6x + 3y = 21 and y=-2x + 7. Will this system have one solution, no solutions or infinitely many solutions? Explain how you know, including calculations or diagrams to illustrate your explanation.

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A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

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Q: please explain  and show all parts

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…