Final answer:
By setting up equations for each angle and assuming they are complementary, Angle A is found to be 77 degrees. Due to a possible typo, Angle B is recalculated to be 13 degrees by subtracting Angle A's measure from 90 degrees, ensuring the two angles are complementary.
Step-by-step explanation:
When two angles are complementary, their measures add up to 90 degrees. Let's first set up the equations for the angles based on their expressions:
- Angle A: A = (-3 + 80)
- Angle B: B = (7 - 70)
Solving these equations, we get:
- A = 77 degrees
- B = -63 degrees
However, since angles cannot have a negative measure, there may have been a typo in the expression for Angle B. Assuming the expression should result in a positive angle measurement, we can find the correct value for Angle B by subtracting the measure of Angle A from 90 degrees, because together, they must complement each other to make 90 degrees:
B = 90 degrees - A
B = 90 degrees - 77 degrees
B = 13 degrees
Thus, the two angles measuring 77 degrees and 13 degrees are complementary, summing up to 90 degrees.