Posted by hunter on .
Solve the following system using the substitution method:
6x  2y = 4
y = 3x + 2

algebra 
Reiny,
sub the 2nd into the 1st:
6x  2(3x+2) = 4
6x  6x  4 = 4
4 = 4
infinite number of solutions, just use the 2nd, pick any x you feel like, and get the y
e.g.
x = 2
y = 3(2)+2 = 8
etc
What you really have is the same equation twice.
(multiply the 2nd by 2 and you will get the 1st)