\left\{ \begin{array} { l } { x + y = 18 } \\ { x + 6 = 1 } \end{array} \right.
Solve for x, y
x=-5
y=23
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x=1-6
Consider the second equation. Subtract 6 from both sides.
x=-5
Subtract 6 from 1 to get -5.
-5+y=18
Consider the first equation. Insert the known values of variables into the equation.
y=18+5
Add 5 to both sides.
y=23
Add 18 and 5 to get 23.
x=-5 y=23
The system is now solved.
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