In Exercises 3 and 4, use the graph to solve the system of linear equations.
Check your solution.
3. x + y = 3
4. 5x + 2y = 2
2x - y = 6
3x + y = 2
=
ay
N
-2
PU
2
4 x
-2
2
4
X
-2
N
-4
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