Question

If a=4 and b=5, what is the value of the following expression? 3 (a+3b)-4

Answer 1

Answer: The answer is 23

Explanation:

Answer 2

53

Explanation:

Given :

`3(a+3b)-4`

`a=4\\b=5`

To Find : value of the given expression.

Solution :

`3(a+3b)-4`

Putting value of a and b

⇒
`3(4+3*5)-4`

Solving this we will use BODMAS rule : According to this rule we need to follow the sequence for solving mathematical expressions

B - Bracket

O- Of

D - Division

M- Multiplication

A - Addition

S- Subtraction

Following this sequence we will solve the given expression

⇒
`3(4+15)-4`

⇒
`3(19)-4`

⇒
`57-4`

⇒
`53`

Thus, The value of the expression
`3(a+3b)-4` is 53