Advertisements
Advertisements
Question
Solve the following equations.
3 (n − 5) = 21
Sum
Advertisements
Solution
3 (n − 5) = 21
Dividing both sides by 3,
`n - 5 = 21/3 = 7`
n = 7 + 5 = 12 (Transposing −5 to R.H.S.)
shaalaa.com
Is there an error in this question or solution?
RELATED QUESTIONS
Solve the following equations.
5t + 28 = 10
Solve the following equation.
`5/2 x = -5`
Solve the following equations.
`5/2 x = 25/4`
Solve the following equations.
-4 (2 + x) = 8
Solve the following equations.
4(2 - x) = 8
Solve: 4(m + 3) = 18
If `9/5x = 18/5`, then x = ______.
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.
1 subtracted from one-third of a number gives 1. Find the number.
