Solve the equation: 2x + 4 = 18. What is the value of x?

To solve the equation 2x + 4 = 18, the first step is to isolate the term involving x. This is achieved by subtracting 4 from both sides of the equation:

2x + 4 - 4 = 18 - 4

which simplifies to:

2x = 14.

Next, to solve for x, divide both sides by 2:

2x / 2 = 14 / 2

resulting in:

x = 7.

So the correct answer is 7.

To verify this, you can substitute x back into the original equation: if x is indeed 7, then:

2(7) + 4 = 14 + 4 = 18.

This confirms that the calculations are correct, leading to the conclusion that the value of x is 7.