Advertisements
Advertisements
Question
Solve the following equation:
`(3"x")/("x" + 6) - "x"/("x" + 5) = 2`
Solution
`(3"x")/("x" + 6) - "x"/("x" + 5) = 2`
⇒ `(3"x"("x" + 5) - "x"("x" + 6))/(("x" + 6)("x" + 5)) = 2`
⇒ `(3"x"^2 + 15"x" - "x"^2 - 6"x")/("x"^2 + "5x" + "6x" + 30) = 2`
⇒ `(2"x"^2 + 9"x")/("x"^2 + 11"x" + 30) = 2`
⇒ 2x2 + 9x = 2 (x2 + 11x + 30)
⇒ 2x2 + 9x = 2x2 + 22x + 60
⇒ 2x2 - 2x2 + 9x - 22x = 60
⇒ -13 x = 60
x = `-60/13 = -4 8/13`
APPEARS IN
RELATED QUESTIONS
Solve: `(4-3"x")/5 + (7 - "x")/3 + 4 1/3 = 0` Hence, find the value of 'p', if 3p - 2x + 1 = 0
28 is 12 less than 4 times a number. Find the number.
Solve:
`1/10 - 7/x = 35`
Solve: `"x" + 7 - "8x"/3 = "17x"/6 - "5x"/8`
A man sold an article for ₹ 396 and gained 10% on it. Find the cost price of the article
Given that x ≥ y. Fill in the blank with suitable inequality sign
– xy `square` – y2
Given that x ≥ y. Fill in the blank with suitable inequality sign
x – y `square` 0
When x is an integer, the solution set for x ≤ 0 are −1, −2, ...
Solve the following inequation
4x – 9 > – 33, where x is a negative integer
Solve the following inequalities
4n + 7 ≥ 3n + 10, n is an integer