Which two equations can be used to determine the measure of these two adjacent angles?

To determine the measure of the two adjacent angles, we need additional information such as the relationships between the angles or the values of other angles. Without this information, we cannot determine the measure of the two adjacent angles or provide the equations.

The equations are 2x+3 and x-6

If we have two adjacent angles, we can set up the following equation:

2x + 3 = x - 6

To solve this equation, we can begin by isolating the x term:

2x - x = -6 - 3

x = -9

Once we have the value of x, we can substitute it back into either of the original equations to find the measure of the angles.

Using the equation 2x + 3:

2(-9) + 3 = -18 + 3 = -15

Therefore, one angle measures -15 degrees. However, angles cannot have negative measures, so we need to consider if there was an error in the problem or if there may be additional information that we are missing.