Question

5x + x = 25 - 1
6x = 24
24
= 4
X =
6
Hence, the number of 50-rupee notes = 4, and the number of 10-rupee
i.e., 5.
Check: Total amount in the purse = Four 50-rupee notes + Five 10-ru
=(50 4 + 10 x 5) = (200 + 5
Self Practice 6C
1. The number decreased by 7 is 25, find the number.
2. The number increased by 10 is 16, find the number.
3. The number is multiplied by 2, and 8 is added to the product, the result is 50, find the num
4. The number is subtracted from 23, the result is 10 less than twice the number, find the nun
5. Two-thirds of the number is increased by 9, the sum will be 19, find the number,
6. The sum of the one-eighth, one-twelfth and one-twentieth parts is 31. find the number,​

Answer 1

Answer:

By using variables x and y form any five linear equations in two variables.

ANSWER:

Linear equations in two variables x and y will be

x+y=12x+3y=8x−y=65x−2y=3x+2y=3