If the equation 7x + 3y = 21 corresponds to the point (3, 0), which of the following equations corre | EduGoog.com

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If the equation 7x + 3y = 21 corresponds to the point (3, 0), which of the following equations corresponds to the point (0, 7)?

A. x + 2y = 14

B. 2x + 3y = 21

C. 3x + 7y = 49

D. 7x + y = 7

E. None of the above

Answer: C. 3x + 7y = 49

The point (0, 7) satisfies the equation 3x + 7y = 49.

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