Advertisements
Advertisements
Question
Solve the following equation: 5y – 15 = 27 -2y
Advertisements
Solution
5y – 15 = 27 -2y
⇒ 5y + 2y - 15 = 27 - 2y + 2y (Adding 2y to both sides)
⇒ 7y - 15 = 27
⇒ 7y - 15 + 15 = 27 + 15 ...(Adding 15 to both sides)
⇒ 7y = 42
⇒ `"7y"/7 = 42/7` ...(Dividing by 7)
⇒ y = 6
APPEARS IN
RELATED QUESTIONS
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.
A whole number is increased by 7 and the new number so obtained is multiplied by 5; the result is 45. Find the whole number.
Solve the following equation: 2x + 3 = 7
Solve the following equation: 5y + 4.9 = 2.4
Solve the following equation: 48 z + 3.6 = 1.2
Solve the following equation: -3x + 4 = 10
Solve the following equation: 7y -18 = 17
Solve the following equation: 7x - 2 = 4x + 7
Solve the following equation: 3y - (y + 2) = 4
If a number x is decreased by 15 and the result is multiplied by 3 to get 81, which equation correctly represents this?
