Advertisements
Advertisements
Question
______ is the solution of 3x + 10 = 7.
Advertisements
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
APPEARS IN
RELATED QUESTIONS
Solve the following equations.
5t + 28 = 10
Solve the following equations.
`q/4 + 7 = 5`
Solve the following equation.
`5/2 x = -5`
Solve the following equations
6z + 10 = -2
The solution of the equation ax + b = 0 is ______.
If a and b are positive integers, then the solution of the equation ax = b will always be a ______.
If `1/6 - x = 1/6`, then x = ______.
5 is the solution of the equation 3x + 2 = 17.
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 |
1 subtracted from one-third of a number gives 1. Find the number.
