Advertisements
Advertisements
प्रश्न
Solve: `("x" + 2)/3 - ("x" + 1)/5 = ("x" - 3)/4 - 1`
Advertisements
उत्तर
`("x" + 2)/3 - ("x" + 1)/5 = ("x" - 3)/4 - 1` ...(L.C.M. of 3 and 5 = 15)
`=> (5("x" + 2) - 3("x" + 1))/15 = ("x" - 3 - 4)/4`
`=> (5"x" + 10 - 3"x" - 3)/15 = ("x" - 7)/4`
`=> (2"x" + 7)/15 = ("x" - 7)/4`
⇒ 4(2x + 7) = 15(x - 7)
⇒ 8x + 28 = 15x - 105
⇒ 8x - 15x = -105 - 28
⇒ -7x = - 133
x = `(-133)/(-7)`
∴ x = 19
APPEARS IN
संबंधित प्रश्न
Solve the following equation:
20 = 6 + 2x
Fifteen more than 3 times Neetu’s age is the same as 4 times her age. How old is she ?
Separate 178 into two parts so that the first part is 8 less than twice the second part.
If the same number be added to the numbers 5, 11, 15 and 31, the resulting numbers are in proportion. Find the number.
Solve: `1/3"x" - 6 = 5/2`
Solve: `(2"x")/3 - (3"x")/8 = 7/12`
Solve: `"x" + 7 - "8x"/3 = "17x"/6 - "5x"/8`
Solve: `("9x" + 7)/2 - ("x" - ("x" - 2)/7) = 36`
The sum of two numbers is 4500. If 10% of one number is 12.5% of the other, find the numbers.
Solve the following inequalities
4n + 7 ≥ 3n + 10, n is an integer
