The first equation can be rewritten as x=6y. Substituting 6y for x in the second equation gives 4(y+1)=6y. The left-hand side can be rewritten as 4y+4, giving 4y+4=6y. Subtracting 4y from both sides of the equation gives 4=2y, or y=2. Choices B, C, and D are incorrect and may be the result of a computationalor conceptual error when solving the system of equations.