Advertisements
Advertisements
Question
Complete the last column of the table.
| Equation | Value | Say, whether the Equation is Satisfied. (Yes/No) |
| x - 7 = 1 | x = 8 |
Advertisements
Solution
| Equation | Value | Say, whether the Equation is Satisfied. (Yes/No) |
| x - 7 = 1 | x = 8 | Yes |
Explanation:
x − 7 = 1
L.H.S. = x − 7
By putting x = 8,
L.H.S. = 8 − 7 = 1 = R.H.S.
Hence, the equation is satisfied.
APPEARS IN
RELATED QUESTIONS
Check whether the value given in the bracket is a solution to the given equation or not:
7n + 5 = 19 (n = 2)
Solve the following equation and verify the answer:
16(3x − 5) − 10(4x − 8) = 40
Solve the following equation and verify the answer:
3(2 − 5x) − 2(1 − 6x) = 1
When a number is divided by 8, the result is –3. The number is ______.
If x is an even number, then the next even number is 2(x + 1).
Change the following statements using expressions into statements in ordinary language.
(For example, Given Salim scores r runs in a cricket match, Nalin scores (r + 15) runs. In ordinary language − Nalin scores 15 runs more than Salim.)
Tony puts q marbles on the table. He has 8 q marbles in his box.
State which of the following are equations (with a variable). Give reason for your answer. Identify the variable from the equations with a variable.
(t − 7) > 5
State which of the following are equations (with a variable). Give reason for your answer. Identify the variable from the equations with a variable.
5 × 4 − 8 = 2x
State which of the following are equations (with a variable). Give reason for your answer. Identify the variable from the equations with a variable.
2n + 1 = 11
Complete the table and find the solution of the equation `"z"/3 = 4` using the table.
|
z |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
______ |
|
`"z"/3` |
`2 2/3` |
3 |
`3 1/3` |
______ |
______ |
______ |
______ |
______ |
______ |
______ |
