HELP ASAP I need help mating term to definition pleas provide a list to explain the matching prosses

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

What is always true when two whole numbers are subtracted?