Jessica is thinking of two numbers. The first number is three more than twice the second number. The sum of the two
numbers is 18. Which system of equations can be used to determine the first number, x, and the second number, y?
A.
x + y = 18
x + 2y = 3
B.
x + y = 3
x = 18 + 2y
C.
x+y=18
x = 3 + 2y
D.
x + 18 = y
y = 2 + 3x
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