Advertisements
Advertisements
Question
Solve the following equation: 5x – 2x +15 = 27
Advertisements
Solution
5x – 2x +15 = 27
⇒ 3x + 15 = 27
⇒ 3x + 15 - 15 = 27 - 15 ...(Subtracting 15 from both sides)
⇒ 3x = 12
⇒ `"3x"/3 = 12/3` ...(Dividing by 3)
⇒ x = 4
APPEARS IN
RELATED QUESTIONS
A number increased by 17 becomes 54. Find the number.
The difference between the ages of Gopal and his father is 26 years. If the sum of their ages is 56 years, find the ages of Gopal and his father.
The difference between two numbers is 15. Taking the smaller number as x; find:
(i) the expression for the larger number.
(ii) the larger number, if the sum of these numbers is 71.
Solve the following equation: 3y ÷ 8 = 13
Solve the following equation: 5x – 2.4 = 4.9
Solve the following equation: `"2m"/3 = 8 2/3`
Solve the following equation: `"x"/1.2 - 6 = 1`
Solve the following equation: 2 (x - 3) – 3 (x - 4) =12
If a number x is decreased by 15 and the result is multiplied by 3 to get 81, which equation correctly represents this?
A number is divided equally among 5 children, and each gets 6. The equation is:
