Advertisements
Advertisements
Question
Six times a number subtracted from 40 gives – 8. Find the number
Solution
Let the required number be x.
Six times the number = 6x.
Given 40 – 6x = – 8
– 6x + 40 – 40 = – 8 – 40
– 6x = – 48
`(-6x)/(-6) = (-48)/(-6)`
x = 8
∴ The required number is 8.
APPEARS IN
RELATED QUESTIONS
Find x and p: `(2x)/3 - 4 = 10/3`
The generalization of the number pattern 3, 6, 9, 12, ... is
If ‘g’ is equal to 300 what is the value of ‘g – 1’ and ‘g + 1’?
Complete the table and find the value of ‘k’ for which `("‘k'")/3` gives 5.
| K | 3 | 6 | 9 | 12 | 15 | 18 |
| `"k"/3` | 1 | 2 |
Identify the value of the shapes and figure in the table given below and verify their addition horizontally and vertically.
The product of ‘q’ and 20 is '20q'
The solution of the equation 3x + 7 = –20 is ______.
0 is a solution of the equation x + 1 = 0.
| Column I | Column II |
| (i) The number of corners of a quadrilateral | (A) = |
| (ii) The variable in the equation 2p + 3 = 5 | (B) constant |
| (iii) The solution of the equation x + 2 = 3 | (C) +1 |
| (iv) solution of the equation 2p + 3 = 5 | (D) –1 |
| (v) A sign used in an equation | (E) p |
| (F) x |
Finding the value of a variable in a linear equation that ______ the equation is called a ______ of the equation.
