What is
Solve the system of equations.
4x+3y=7
7x-14y=21
x=\frac{-23}{11}$and y=\frac{5}{11}$
x=\frac{23}{11}$and y=\frac{5}{11}$
x = all real numbers,
y = all real numbers
x=\frac{23}{11}$and y=\frac{-5}{11}$
x=\frac{-23}{11}$and y=\frac{-5}{11}$