The sum of a number times 3 and 18 is at most -15.
Mathematics · High School · Thu Feb 04 2021
Answered on
Given the numerical statement:
The sum of a number times 3 and 18 is at most -15.
Solution:
The given numerical statement can be written as,
3x + 18 = -15
In order to determine the number, we simply need to solve for x. To do so, transpose 18 to the other side of the equation, hence it must be taken to note that in transposing a number, the sign changes.
3x + 18 = -15
3x = -15 - 8
3x = -33
Divide both sides by 3 in order to cancel out 3x, leaving behind x.
3x/3 = -33/3
x = -11
Final answer:
x = -11