Question

1. what is a number that when you multiply it by 4 and add 15 to the product, you get 79?

Explanation:

Step1: Define the variable

Let the number be \( x \).

Step2: Translate the problem into an equation

Multiplying the number by 4 gives \( 4x \), and adding 15 to the product gives \( 4x + 15 \). We know this equals 79, so the equation is \( 4x + 15 = 79 \).

Step3: Solve for \( x \)

Subtract 15 from both sides: \( 4x + 15 - 15 = 79 - 15 \), which simplifies to \( 4x = 64 \).
Then divide both sides by 4: \( \frac{4x}{4} = \frac{64}{4} \), so \( x = 16 \).

Answer:

The number is 16.