Advertisements
Advertisements
प्रश्न
Solve the following equations for the unknown: `(2x + 3)/(x + 7) = (5)/(8), x ≠ -7`
उत्तर
`(2x + 3)/(x + 7) = (5)/(8), x ≠ -7`
⇒8(2x + 3) = 5(x + 7)
⇒ 16x + 24 = 5x + 35
⇒ 11x = 11
⇒ x = 1.
APPEARS IN
संबंधित प्रश्न
19x + 13 -12x + 3 = 23
Solve: x – 30% of x = 35
One-fifth of a number is 5, find the number.
Solve the following equations for the unknown: `(3x - 5)/(7x - 5) = (1)/(9), x ≠ (5)/(7)`
Solve the following equations for the unknown: `(x + 13)/(x^2 - 1) + (5)/(x + 1) = (7)/(x + 1)`
In an isosceles triangle, each of the two equal sides is 4 cm more than the base. If the perimeter of the triangle is 29 cm, find the sides of the triangle.
A man is double his son's age. Twenty years ago, he was six times his son's age. Find the present age of the father and the son.
The perimeter of a rectangular field is 80m. If the breadth is increased by 2 m and the length is decreased by 2 m, the area of the field increases by 36m2.Find the length and breadth of the field.
A 90 kg solution has 10% salt. How much water must be evaporated to have the solution with 20% salt?
How many kilograms of tea at Rs 50 per kg should be mixed with 35 kg of tea costing Rs 60 per kg so as to sell the mixture at Rs 57 per kg without gaining or losing anything in transaction?