lyssam2000 lyssam2000 20-03-2017 Mathematics contestada For the following system, use the second equation to make a substitution for y in the first equation. 2 x + y = 5 y + 3 = 2 x 2 x + 2 x - 3 = 5 2 x + 3 - 2 x = 5 2 x + 2 x + 3 = 5