Advertisements
Advertisements
Question
Solve the following equation: `"y"/1.8` - 2.1 = - 2.8
Advertisements
Solution
`"y"/1.8 - 2.1 = - 2.8`
⇒ `"y"/1.8 - 2.1 + 2.1 = - 2.8 + 2.1` (Adding 2.1 to both sides)
⇒ `"y"/1.8` = - 0.7
⇒ `"y"/1.8 xx 1.8 = - 0.7 xx 1.8` (Multiplying by 1.8)
∴ y = - 1.26
RELATED QUESTIONS
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.
The age of a man and the age of his daughter differ by 23 years and the sum of their ages is 41 years. Find the age of the man.
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: x - 3 = `5 1/2`
Solve the following equation: `"z"/2.4 + 3.6 = 5.1`
Solve the following equation: `"2z" - 2 1/2 = 3 1/3`
Solve the following equation: 5x – 2x +15 = 27
Solve the following equation: 7z + 15 = 3z – 13
Solve the following equation: (7y +8) +7= 8
One-fourth of a number added to one-sixth of It is 15. Find the number.
