Advertisements
Advertisements
Question
Solve the following equations.
3 (n - 5) = -21
Sum
Solution
3 (n - 5) = -21
Dividing both sides by 3,
`n - 5 = (-21)/3 = -7`
n = − 7 + 5 = −2 (Transposing −5 to R.H.S.)
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Solve the following equation.
`7m + 19/2 = 13`
If a and b are positive integers, then the solution of the equation ax = b will always be a ______.
If 7x + 4 = 25, then x is equal to ______.
Which of the following equations can be formed starting with x = 0?
Which of the following equations cannot be formed using the equation x = 7?
In integers, 4x – 1 = 8 has ______ solution.
In whole numbers, x + 8 = 12 – 4 has ______ solution.
If `x - 1/2 = - 1/2`, then x = ______.
`3/2` is the solution of the equation 8x – 5 = 7.
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 |