Solve the following system of equations with the substitution method. Start by solving the first equation for x. Then, substitute your new equation into the second equation.

$\displaystyle {\left\lbrace\begin{array}{ccc} {x}+{3}{y}&=&-{7}\\+{2}{x}+{y}&=&-{4}\end{array}\right.}$

Answer: $\displaystyle {\left({x},{y}\right)}=$ (,)
Preview $\displaystyle {x}$: Preview Question 6 Part 1 of 2  
Preview $\displaystyle {y}$: Preview Question 6 Part 2 of 2  


Enter your answers as integers or as reduced fractions in the form A/B.