Mathematics

Problem

For the system of linear equations

5x - y = 11

and

2x + 3y = 4

, which of the following single-variable expressions is most convenient to substitute into the other equation because it avoids fractions? a)

x = \dfrac{4 - 3y}{2}

y = 11 - 5x

y = 5x - 11

y = \dfrac{4 - 2x}{3}