The system of equations used to represent this scenario is y = –x + 10 and y = 4x.What is the larger number?

At the solution, both equations have the same value of y, so set them equal: 4x = −x + 10. This gives 5x = 10, so x = 2 and y = 4(2) = 8. The larger number is 8, choice C.

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