rwsarfiell9e rwsarfiell9e 27-04-2017 Mathematics contestada Which equation shows the first step of the substitution method being used to solve the system of linear equations? x + y = 6 x = y + 5 Question 8 options: A.x + y = y + 5 B.(y + 5) + y = 6 C.x + (y + 5) = 6 D.x = (x - 6) + 5