Advertisements
Advertisements
Question
Solve the following equation:
2a – 3 =5
Solution
2a – 3 =5
⇒2a = 5 +3
⇒ 2a = 8
⇒ a =`8/2` = 4
∴ a = 4
APPEARS IN
RELATED QUESTIONS
Solve the following equation:
3(x + 1) = 12 + 4(x - 1)
Solve the following equation:
`3"a" - 1/5 = "a"/5 + 5 2/5`
Solve the following equation:
`"x"/3 - 2 1/2 = "4x"/9 - "2x"/3`
Solve the following equation:
`("2x" - 13)/5 - ("x" - 3)/11 = ("x" - 9)/5 + 1`
Solve the following equation:
a – 2 = 6
21 – 3 (b - 7) = b+ 20
Solve: `"x"/2 + "x" = 9`
Solve: p + 1.4p = 48
Solve: `1/2 ("x" + 5) - 1/3 ("x" - 2) = 4`
If 5 is subtracted from three times a number, the result is 16. Find the number.
Solve the following equations for the unknown: (a + 2)(2a +5) = 2(a + 1)2 + 13
Solve the following equations for the unknown: `(1)/(x - 1) + (4)/(5) = (2)/(3), x ≠ 1`
Solve the following equations for the unknown: `2 + (3x - 2)/(3x + 2) = (3x + 2)/(x + 1)`
Solve the following equations: a(x - 2a) +b (x - 2b) = 4ab
In a two digit number, the ratio of the digits at the unit's place and the ten's place is 3:2. If the digits are reversed, the resulting number is 27 more than the original number. Find the two digit number.
Two planes start from a city and fly in opposite directions, one averaging a speed of 40 km/h more than that of the other. If they are 3400km apart after 5 hours, find their average speeds.
The sum of two numbers is 99. If one number is 20% more than the others, find the two numbers.
There are certain benches in a classroom. If 4 students sit on each bench, 3 benches are left vacant; and if 3 students sit on each bench, 3 students are left standing. What is the total number of students in the class?
A's age is six times that of B's age. 15 years hence A will be three times as old as B; find their ages.
A and B together can complete a piece of work in 6 days. A can do it alone in 10 days. Find the number of days in which B alone can do the work.
