Advertisements
Advertisements
प्रश्न
Solve: `(3"x" - 2)/4 - ("2x" + 3)/3 = 2/3 - "x"`
Advertisements
उत्तर
`(3"x" - 2)/4 - ("2x" + 3)/3 = 2/3 - "x"`
`= (3"x" - 2)/4 - ("2x" + 3)/3 = 2/3 - "x"/1`
`= (3(3"x" - 2) - 4(2"x" + 3))/12= (2 xx1)/(3 xx 1) - ("x" xx 3)/(1 xx 3)`
`=(9"x" - 6 - "8x" - 12)/12 = (2 - "3x")/3`
`= ("x" - 18)/12 = (2 - "3x")/3`
= 3(x - 18) = 12(2 - 3x)
= 3x - 54 = 24 - 36x
= 3x + 36x = 24 + 54
= 39x = 78
`"x" = 78/39 = 2`
∴ x = 2
APPEARS IN
संबंधित प्रश्न
If Megha’s age is increased by three times her age, the result is 60 years. Find her age
A’s salary is same as 4 times B’s salary. If together they earn Rs.3,750 a month, find the salary of each.
The length of a rectangle is twice its width. If its perimeter is 54 cm; find its length.
A rectangle’s length is 5 cm less than twice its width. If the length is decreased by 5 cm and width is increased by 2 cm; the perimeter of the resulting rectangle will be 74 cm. Find the length and width of the origi¬nal rectangle.
A man’s age is three times that of his son, and in twelve years he will be twice as old as his son would be. What are their present ages.
A man completed a trip of 136 km in 8 hours. Some part of the trip was covered at 15 km/hr and the remaining at 18 km/hr. Find the part of the trip covered at 18 km/hr.
Solve: `2/"5x" - 5/"3x" = 1/15`
The ages of A and B are in the ratio 7 : 5. Ten years hence, the ratio of their ages will be 9 : 7. Find their present ages.
Solve the following inequation
x – 6 < 1, where x is a natural number
Solve the following inequation
6x – 7 ≥ 35, where x is an integer
