Question 60291
Solve by elimination:
1) 5x - y = 6  Multiply this equation -2
2) 10x - 2y = 12

1a) -10x + 2y = -12  Now add this to equation 2)
2) 10x - 2y = 12  The result!
0 = 0

The two equations represent the same line so there are an inifinite number of solutions.