Question

6. Find out which of the following equations have
x = 2, y = -1 as a solution :
(i) 5x + 2y = 8 (ii) 4x – 3y = 14
(iii) 2y + 2 = 3x + 6 (iv) 3y - 5 + 5x = 2
(v) 3y – 4 + x = 2 (vi) 10x + 7y - 13 = 0
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Answer 1

Answer:

1. 5×2 + 2×-1

10 -2

8 ans

2. 4×2- 3×-1 =14

8 +3 =14

11 is not equal to 14

3. 2 × -1 +2 = 3×2+6

-2 +2 = 6+6

0 is not equal to 12

4. 3×-1 -5 +5×2=2

-3 -5 +10 =2

-8 + 10 = 2

2 = 2

5 . 3×-1 - 4 + 2 = 2

- 3 - 4 + 2 = 2

-7 +2 = 2

-5 is not equal to 2

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