\left\{ \begin{array} { l } { x + y = 48 } \\ { y + 12 = 64 } \end{array} \right.
Solve for x, y
x=-4
y=52
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y=64-12
Consider the second equation. Subtract 12 from both sides.
y=52
Subtract 12 from 64 to get 52.
x+52=48
Consider the first equation. Insert the known values of variables into the equation.
x=48-52
Subtract 52 from both sides.
x=-4
Subtract 52 from 48 to get -4.
x=-4 y=52
The system is now solved.
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