Advertisements
Advertisements
प्रश्न
The value of x for which the expressions 3x – 4 and 2x + 1 become equal is ______.
पर्याय
–3
0
5
1
उत्तर
The value of x for which the expressions 3x – 4 and 2x + 1 become equal is 5.
Explanation:
Given expressions 3x – 4 and 2x + 1 are equal.
Then, 3x – 4 = 2x + 1
3x – 2x = 1 + 4 ...[Transposing 2x to LHS and – 4 to RHS]
x = 5
Hence, the value of x is 5.
APPEARS IN
संबंधित प्रश्न
Identify the monomials, binomials, and trinomials in the following:
x5
Simplify:
2x2 − xy + 6x − 4y + 5xy − 4x + 6x2 + 3y
What must be added to 5x3 − 2x2 + 6x + 7 to make the sum x3 + 3x2 − x + 1?
‘8 more than three times the number x’ can be written as ______.
Annual salary at r rupees per month alongwith a festival bonus of Rs 2000 is ______.
x times of 3 is added to the smallest natural number.
Give expression in the following case.
11 added to 2m
Form expressions using y, 2 and 7. Every expression must have y in it. Use only two number operations. These should be different.
In a bag there are 5 and 2 rupee coins. If they are equal in number and their worth is ₹ 70, then
- The worth of x coins of ₹ 5 each ______.
- The worth of x coins of ₹ 2 each ______.
- The equation formed is ______.
- There are ______ 5 rupee coins and ______ 2 rupee coins.
In a Mathematics quiz, 30 prizes consisting of 1st and 2nd prizes only are to be given. 1st and 2nd prizes are worth ₹ 2000 and ₹ 1000, respectively. If the total prize money is ₹ 52,000 then show that:
- If 1st prizes are x in number the number of 2nd prizes are ______.
- The total value of prizes in terms of x are ______.
- The equation formed is ______.
- The solution of the equation is ______.
- The number of 1st prizes are ______ and the number of 2nd prizes are ______.
