\left\{ \begin{array} { l } { x + y = 1 } \\ { x = 5 } \end{array} \right.
Solve for x, y
x=5
y=-4
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\left\{ \begin{array} { l } { x + y = 1 } \\ { x = 5 } \end{array} \right.
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5+y=1
Consider the first equation. Insert the known values of variables into the equation.
y=1-5
Subtract 5 from both sides.
y=-4
Subtract 5 from 1 to get -4.
x=5 y=-4
The system is now solved.
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