Advertisements
Advertisements
प्रश्न
If
= 2x + 3,
= `3/2x + 7` and
= x – 3 then find the value of:
`1/2`
+
– 3![]()
Advertisements
उत्तर
Given,
= 2x + 3,
= `3/2x + 7` and
= x – 3
`1/2`
+
– 3
= `1/2(3/2 xx 2 + 7) + (8 - 3) - 3(2 xx 0 + 3)`
= `1/2(10) + 5 - 3(3)`
= 5 + 5 – 9
= 1
APPEARS IN
संबंधित प्रश्न
Write down the following in the product form: 6y5
Write down the following in the product form: 9xy2z
Find a number which when multiplied by 5 is increased by 80.
The sum of three consecutive natural numbers is 114. Find the numbers.
Find two numbers such that one of them exceeds the other by 18 and their sum is 92.
One out of two numbers is thrice the other. If their sum is 124, find the numbers.
Find two numbers such that one of them is five times the other and their difference is 132.
The sum of three consecutive odd numbers is 21. Find the numbers.
Reena is 6 years older than her brother Ajay. If the sum of their ages is 28 years, what are their present ages?
If x is a negative integer, – x is a positive integer.
The side of a regular hexagon is denoted by l. Express the perimeter of the hexagon using l.
(Hint: A regular hexagon has all its six sides equal in length.)

A cube is a three-dimensional figure as shown in the given figure. It has six faces and all of them are identical squares. The length of an edge of the cube is given by l. Find the formula for the total length of the edges of a cube.

The expression for the number of diagonals that we can make from one vertex of a n sided polygon is ______.
The length of a side of square is given as 2x + 3. Which expression represents the perimeter of the square?
Find the perimeter of the figure given below:

A wire is (7x – 3) metres long. A length of (3x – 4) metres is cut for use. Now, answer the following questions:
- How much wire is left?
- If this left out wire is used for making an equilateral triangle. What is the length of each side of the triangle so formed?
The sum of the multiplication table of natural number ‘n’ is given by 55 × n. Find the sum of table of 7.
If
= `3/4x - 2` and
= x + 6, then find the value of:
– ![]()
If
= `3/4x - 2` and
= x + 6, then find the value of:
2
– `3/2`![]()
