Question

The key to solving a two-step equation is isolating the variable on one side of the equation. In which of the following equations is the variable isolated?

A)x = 9/2 + 4
B)2x = 8
C)3x = 8 + 5
D)x = 5x - 4

Answer 1

The variable is already isolated in the equation 2x = 8.

Step-by-step explanation:

The correct answer is B) 2x = 8.

In this equation, the variable x is already isolated on one side of the equation. By dividing both sides by 2, we can further simplify the equation to x = 4.