What is the value of x if 5x - 15 = 0?

What is the value of x if 5x - 15 = 0?

• A. 2
• B. 3
• C. 5
• D. 0

Answer: (B)

To solve the equation \(5x - 15 = 0\), the first step is to isolate the variable \(x\). This can be accomplished by adding \(15\) to both sides of the equation, leading to: \[ 5x = 15 \] Next, to find \(x\), divide both sides by \(5\): \[ x = \frac{15}{5} \] Calculating this gives: \[ x = 3 \] Thus, the value of \(x\) is indeed \(3\), confirming that the correct answer is the second choice. This demonstrates the steps involved in solving a linear equation involving one variable, providing clarity on how we manipulate the equation to isolate \(x\).

To solve the equation (5x - 15 = 0), the first step is to isolate the variable (x). This can be accomplished by adding (15) to both sides of the equation, leading to:

[

5x = 15

]

Next, to find (x), divide both sides by (5):

[

x = \frac{15}{5}

]

Calculating this gives:

[

x = 3

]

Thus, the value of (x) is indeed (3), confirming that the correct answer is the second choice. This demonstrates the steps involved in solving a linear equation involving one variable, providing clarity on how we manipulate the equation to isolate (x).