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Question
______ is the solution of 3x + 10 = 7.
Fill in the Blanks
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Solution
x = –1 is the solution of 3x + 10 = 7.
Explanation:
Solve the given equation for x,
⇒ 3x + 10 = 7
⇒ 3x = 7 – 10 ...[Transposing 10 to RHS]
⇒ 3x = –3
⇒ `(3x)/3 = (-3)/3` ...[Dividing both sides by 3]
x = –1
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In integers, 4x – 1 = 8 has ______ solution.
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 |
