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प्रश्न
Write equation for the following statement:
If you add 3 to one-third of z, you get 30.
उत्तर
One third of z is `z/3`.
∴ `z/3 + 3 = 30`
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संबंधित प्रश्न
Complete the last column of the table.
| Equation | Value | Say, whether the Equation is Satisfied. (Yes/No) |
| x + 3 = 0 | x = 0 |
Check whether the value given in the bracket is a solution to the given equation or not:
4p − 3 = 13 (p = 0)
Set up an equation in the following case:
Laxmi’s father is 49 years old. He is 4 years older than three times Laxmi’s age. (Take Laxmi’s age to be y years.)
Simplify:
−x + [5y − {x − (5y − 2x)}]
Write the following statement as an equation:
A number increased by 8 equals 15.
Verify by substitution that the root of 3x − 5 = 7 is x = 4.
Verify by substitution that the root of 5x − 8 = 2x − 2 is x = 2
Solve the following equation and verify the answer:
x − 2 = −5
Answer the following:
Take Sarita’s present age to be y years
- What will be her age 5 years from now?
- What was her age 3 years back?
- Sarita’s grandfather is 6 times her age. What is the age of her grandfather?
- Grandmother is 2 years younger than grandfather. What is grandmother’s age?
- Sarita’s father’s age is 5 years more than 3 times Sarita’s age. What is her father’s age?
State which of the following are equations (with a variable). Give reason for your answer. Identify the variable from the equations with a variable.
7 × 3 − 13 = 8
