The sum of triple a number and nineteen.

Mathematics · College · Mon Jan 18 2021

Answered on

Given the statement:

The sum of triple a number and nineteen.

Solution:

The given numerical statement can be written as,

3x + 19

We equate 3x since it is stated in the phrase triple a number, and we've also included a plus sign since the operation of addition is in line with the word sum. Now to find for the value of the number, or x, we simply need to transpose 19 on the other side of the equation, hence we must take note that in transposing a number, the sign changes.

=3x + 19

3x = -19

Divide both sides by 3 in order to find the value of x.

3x/3 = -19/3

x = -6.3333 (repeating)

Since we have a repeating answer we can either represent it with dash or the word repeating enclosed with a parenthesis.

Final answer

x = -6.3333 (repeating)