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Question
Using graphical method, solve the following system of equations:
3x + y + 4 = 0 and 3x − y + 2 = 0
Graph
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Solution
3x + y + 4 = 0
| x | -2 | -3 |
| y | 2 | 5 |
3x − y + 2 = 0
| x | 0 | 1 |
| y | 2 | 5 |
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