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प्रश्न
Solve the simultaneous equations by using graphical method
x + 3y = 7
2x + y = – 1
तक्ता
आलेख
उत्तर
| x | 1 | – 2 | 4 | – 5 |
| y | 2 | 3 | 1 | 4 |
| x, y | (1, 2) | (–2, 3) | (4, 1) | (–5, 4) |
And, 2x + y = – 1
| x | 0 | 1 | – 1 | – 2 |
| y | – 1 | – 3 | 1 | 3 |
| x, y | (0, – 1) | (1, – 3) | (– 1, 1) | (–2, 3) |
Two lines of the equation,
x + 3y = 7
And 2x + y = – 1
Intersect at point (– 2, 3).
∴ x = – 2 and y = 3 satisfies the equation x + 3y = 7 and 2x + y = – 1
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