If 5 + 12 = 2 + 3x, what must be the value of x?

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To find the value of x in the equation 5 + 12 = 2 + 3x, start by simplifying the left side of the equation.

Combine the numbers on the left:

5 + 12 equals 17.

Now, the equation can be rewritten as:

17 = 2 + 3x.

Next, isolate 3x by subtracting 2 from both sides of the equation:

17 - 2 = 3x, which simplifies to:

15 = 3x.

To solve for x, divide both sides by 3:

15 ÷ 3 = x, leading to:

x = 5.

This means that the correct value of x is 5, as it satisfies the original equation when substituted back in. Thus, the answer is clear and correct.