Posted by **hunter** on Wednesday, July 3, 2013 at 5:35pm.

Solve the following system using the substitution method:

6x - 2y = -4

y = 3x + 2

- algebra -
**Reiny**, Wednesday, July 3, 2013 at 8:41pm
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)

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