Advertisements
Advertisements
प्रश्न
______ is the solution of the equation 3x – 2 = 7.
Advertisements
उत्तर
x = 3 is the solution of the equation 3x – 2 = 7.
Explanation:
Solve the given equation for x,
3x – 2 = 7
⇒ 3x = 7 + 2 ...[Transposing (–2) to RHS]
⇒ 3x = 9
⇒ `(3x)/3 = 9/3` ...[Dividing both sides by 3]
⇒ x = 3
APPEARS IN
संबंधित प्रश्न
Solve the following equations.
-4 (2 + x) = 8
The solution of the equation ax + b = 0 is ______.
The solution of the equation 3x + 7 = –20 is ______.
In integers, 4x – 1 = 8 has ______ solution.
x – 0 = ______; when 3x = 12.
The solution of the equation x + 15 = 19 is ______.
Any term of an equation may be transposed from one side of the equation to the other side of the equation by changing the ______ of the term.
If `9/5x = 18/5`, then x = ______.
If 84 exceeds another number by 12, then the other number is ______.
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 |
