\left\{ \begin{array} { l } { 5 x + y = 7 } \\ { 4 x + 5 = - 11 } \end{array} \right.
Solve for x, y
x=-4
y=27
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4x=-11-5
Consider the second equation. Subtract 5 from both sides.
4x=-16
Subtract 5 from -11 to get -16.
x=\frac{-16}{4}
Divide both sides by 4.
x=-4
Divide -16 by 4 to get -4.
5\left(-4\right)+y=7
Consider the first equation. Insert the known values of variables into the equation.
-20+y=7
Multiply 5 and -4 to get -20.
y=7+20
Add 20 to both sides.
y=27
Add 7 and 20 to get 27.
x=-4 y=27
The system is now solved.
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