Ontario Mathematics Proficiency Practice Test

Question: 1 / 400

What is \( x \) if \( 2x + 4 = 14 \)?

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To solve the equation \( 2x + 4 = 14 \), the goal is to isolate \( x \).

First, subtract 4 from both sides of the equation to eliminate the constant term on the left side:

\[

2x + 4 - 4 = 14 - 4

\]

This simplifies to:

\[

2x = 10

\]

Next, divide both sides of the equation by 2 to solve for \( x \):

\[

x = \frac{10}{2}

\]

This calculation yields:

\[

x = 5

\]

Thus, the correct value of \( x \) is indeed 5. This demonstrates the proper steps to isolate the variable and arrive at the solution, confirming why the answer is correct.

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