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प्रश्न
In integers, 4x – 1 = 8 has ______ solution.
उत्तर
In integers, 4x – 1 = 8 has no solution.
Explanation:
Solve the given equation for x,
4x – 1 = 8
⇒ 4x = 8 + 1 ........[Transposing (–1) to RHS]
⇒ 4x = 9
⇒ `(4x)/4 = 9/4` ......[Dividing both sides by 4]
⇒ x = `9/4`
Since, the solution of the equation is not an integer, hence the equation has no solution.
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3 (n − 5) = 21
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Sum of two numbers is 81. One is twice the other.
The solution of the equation is ______.
If z + 3 = 5, then z = ______.
______ is the solution of 3x + 10 = 7.
In natural numbers, x – 5 = –5 has ______ solution.
Match each of the entries in Column I with the appropriate entries in Column II.
| Column I | Column II |
| (i) x + 5 = 9 | (A) `- 5/3` |
| (ii) x – 7 = 4 | (B) `5/3` |
| (iii) `x/12` = – 5 | (C) 4 |
| (iv) 5x = 30 | (D) 6 |
| (v) The value of y which satisfies 3y = 5 | (E) 11 |
| (vi) If p = 2, then the value of `1/3 (1 - 3p)` | (F) – 60 |
| (G) 3 |
Subtracting 5 from p, the result is 2.
