Questions: Thirty less a number is equal to the product of 3 and the sum of the number and 6 . Find the number.
Transcript text: Thirty less a number is equal to the product of 3 and the sum of the number and 6 . Find the number.
Solution
Solution Steps
To solve for the number, let's denote the unknown number as \( x \). The problem states that thirty less a number is equal to the product of 3 and the sum of the number and 6. This can be translated into the equation:
\[ 30 - x = 3(x + 6) \]
We will solve this equation for \( x \).
Step 1: Translate the Problem into an Equation
The problem states that thirty less a number is equal to the product of 3 and the sum of the number and 6. Let the unknown number be \( x \). This can be written as:
\[ 30 - x = 3(x + 6) \]
Step 2: Simplify the Equation
First, expand the right-hand side of the equation:
\[ 30 - x = 3x + 18 \]
Step 3: Rearrange the Equation
Move all terms involving \( x \) to one side and constants to the other side:
\[ 30 - 18 = 3x + x \]
\[ 12 = 4x \]
Step 4: Solve for \( x \)
Divide both sides by 4 to isolate \( x \):
\[ x = \frac{12}{4} \]
\[ x = 3 \]