Question

if 16 is four more than 3x, then x^2+5 is equal to?

Answer 1

Answer:Acc. to question

3x+4=16

3x=16-4

3x=12

x=12/3

x=4_______(1)

x^2+5______(2)

Use(1) in (2)

x^2+5=(4) ^2+5

=16+5

=21

Step-by-step explanation:

Answer 2

Given - Relation between numbers

Find - Value of expression

Solution - Forming equation as per the given relation -

3x + 4 = 16

Shifting 4 to Right Hand Side

3x = 16 - 4

Performing subtraction

3x = 12

Shifting 3 to Right Hand Side

x = 12/3

Performing division

x = 4

Keep the value of x in given expression -

Value = 4² + 5

Taking square

Value = 16 + 5

Performing addition

Value = 21

Hence, the value of given expression is 21.