Answer :

Subtracting 5 from both sides,

⇒ 3x + 5 – 5 = 23 – 5

⇒ 3x = 18

Dividing both sides by 3,

⇒ x = 6

Rate this question :

Frame and solve the equations for the following statements:

Mary is 3 times older than Nandhini. After 10 years the sum of their ages will be 80. Find their present ages.

Tamilnadu - Math Term-2Frame and solve the equations for the following statements:

A number decreased by 5% of it is 3800. What is the number?

Tamilnadu - Math Term-2Frame and solve the equations for the following statements:

Two numbers are in the ratio 5 : 3. If they differ by 18, what are the numbers?

Tamilnadu - Math Term-2Frame and solve the equations for the following statements:

Sum of two numbers is 60. The bigger number is 4 times the smaller one. Find the numbers.

Tamilnadu - Math Term-2Frame and solve the equations for the following statements:

Sum of three consecutive numbers is 90. Find the numbers.

Tamilnadu - Math Term-2Frame and solve the equations for the following statements:

The breadth of a rectangle is 8 cm less than its length. If the perimeter is 60 cm, find its length and breadth.

Tamilnadu - Math Term-2Frame and solve the equations for the following statements:

The sum of the two numbers is 21 and their difference is 3. Find the numbers. (Hint: Let the bigger number be x and smaller number be x – 3)

Tamilnadu - Math Term-2Solve the following equations:

Tamilnadu - Math Term-2