Advertisements
Advertisements
प्रश्न
Solve the following equation:
(x - 5)(x + 3) = (x - 7)(x + 4)
उत्तर
(x - 5) (x + 3) = (x - 7)(x + 4)
⇒ x2 + 3x - 5x - 15 = x2 + 4x - 7x - 28
⇒ -2x - 15 = - 3x - 28
⇒ 3x - 2x = 15 - 28
⇒ x = -13
APPEARS IN
संबंधित प्रश्न
4x – 5x + 2x = 28 + 3x
0.4x – 1.2 = 0.3x + 0.6
Solve: `"3x"/4 + "4x" = 38`
Solve: 0.6a +0.2a = 0.4 a + 8
One-fifth of a number is 5, find the number.
If 5 is subtracted from three times a number, the result is 16. Find the number.
The present age of a man is double the age of his son. After 8 years, the ratio of their ages will be 7 : 4. Find the present ages of the man and his son.
The distance between two places Bangalore and Hyderabad is 660 km. Anand starts from Bangalore with a certain uniform speed while Sonu starts from Hyderabad at the same time with a uniform speed that is 4km more than that of Anand. If they meet each other after 5 hours, find the speed of each.
A tap can fill a tank in 12 hrs while another tap can fill the same tank in x hours. Both the taps if opened together fill the tank in 6 hrs and 40 minutes. Find the time the second tap will take to fill the tank.
What number decreased by 18% of itself gives 1599?
