x = 10 y = x + 21 The solution to the given system of equations is x , y

Question

x = 10 y = x + 21 The solution to the given system of equations is x , y . What is the value of y ?

Accepted Answer

Choice D is correct. It's given by the first equation in the given system of equations that x = 10 . Substituting 10 for x in the second equation in the given system yields y = 10 + 21 , or y = 31 . Therefore, the value of y is 31 . Choice A is incorrect and may result from conceptual or calculation errors. Choice B is incorrect. This is the value of x , not the value of y . Choice C is incorrect and may result from conceptual or calculation errors.

Question 0fe484