How many solutions does the equation 6x + 12 = 18 have?

To determine how many solutions the equation 6x + 12 = 18 has, we first need to rearrange the equation to isolate the variable x.

Start by subtracting 12 from both sides of the equation:

6x + 12 - 12 = 18 - 12

This simplifies to:

6x = 6

Next, divide both sides by 6 to solve for x:

x = 6 / 6

This simplifies to:

x = 1

So, the equation has one solution: x = 1.

In conclusion, the equation 6x + 12 = 18 has exactly one solution.