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5 votes
Y = x^2 - 5x + 3

5x + y = 39
Which of the following is the x-value of a solution to
the system of equations above?
A) 6
B) 12
C) 18
D) 36

1 Answer

7 votes

Answer:

x = 6 (A)

Step-by-step explanation:

We plug y = x^2 - 5x + 3 into 5x + y = 39 and we have

5x + x^2 - 5x + 3 = 39

-> x^2 = 36

-> x = 6

User Artur Soler
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