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

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

• A. 6
• B. 7
• C. 14
• D. 9

Answer: (A)

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.

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.