x + 3y = 12
4x - y = -17 is:
B. (12, -17)
Since this is a mutliple-choice question, one way to solve it is to try each proposed solution. We do this by substituting the first number in ...
A system of equations is solved by substitution. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.