Final answer:
To find the value of x and m2, the equation 18 + (x - 3) = 90 is solved, yielding x = 75 and m2 = 72 degrees.
Step-by-step explanation:
The question asks to find the value of x and the measure of angle 2, given that angle 1 and angle 2 are complementary angles, with m1 = 18 degrees and m2 = (x - 3) degrees. Complementary angles add up to 90 degrees. Therefore, we set up the equation 18 + (x - 3) = 90. Solving for x, we subtract 18 from both sides to get x - 3 = 72, and then add 3 to both sides yielding x = 75. Since we now have x, we can calculate the measure of angle 2 by substituting x into (x - 3), which gives us (75 - 3) = 72 degrees.
Hence, x is equal to 75 and the measure of angle 2 is 72 degrees.