Mathematics

12 March, 03:50

To solve the system of equations below, Maria isolated the variable y in the first equation and then substituted it into the second equation. What was the resulting equation?

{ 3y=12x

{x^2+y=18

A. x^2 + x = 18

B. x^2 - 4x = 18

C. x^2 + 4 = 18

D. x^2 + 4x = 18

+3

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