Advertisements
Advertisements
Question
Solve the following equation: 7y -18 = 17
Advertisements
Solution
7y -18 = 17
⇒ 7y - 18 + 18 = 17 + 18 (Adding 18 to both sides)
⇒ 7y = 35
⇒ `"7y"/7 = 35/7` (Dividing by 7)
∴ y = 5
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 ages of a woman and her son is 19 years and the sum of their ages is 37 years; find the age of the son.
Two natrual numbers differ by 6 and sum of them is 36. Find the larger number.
The sum of three consecutive numbers is 54. Taking the middle number as x, find:
(i) expression for the smallest number and the largest number.
(ii) the three numbers.
Solve the following equation: 2x + 3 = 7
Solve the following equation: 3y – 8 = 13
Solve the following equation: 7x - 2 = 4x + 7
Solve the following equation: `3 2/5 - "y" = 2 1/2`
Solve the following equation: 7z + 15 = 3z – 13
