Advertisements
Advertisements
Question
Solve the following equation: `"y"/1.8` - 2.1 = - 2.8
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
APPEARS IN
RELATED QUESTIONS
A number is increased by 12 and the new number obtained is multiplied by 5. If the resulting number is 95, find the original number.
When two consecutive natural numbers are added, the sum is 31; find the numbers.
The difference between the two numbers is 23. Taking the larger number as x, find:
(i) the expression for a smaller number.
(ii) the smaller number, if the sum of these two numbers is 91.
Solve the following equation: 2x ÷ 3 = 7
Solve the following equation: 8y = 3- 3y
Solve the following equation: 7x - 2 = 4x + 7
Solve the following equation: x - `2 1/3 = 5 1/2`
Solve the following equation: 5x – 2x +15 = 27
Solve the following equation: 2 (x - 3) – 3 (x - 4) =12
Solve the following equation: (7y +8) +7= 8
