Friday

April 18, 2014

April 18, 2014

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

6x - 2y = -4

y = 3x + 2

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

**Related Questions**

Algebra - Solve the system of linear equations using the substitution method. 3x...

algebra - Solve the following system using the substitution method: 3x + y = -3 ...

Algebra - I have a few questions I need help with! 1. Solve the system by ...

Algebra help needed please!! - I have a few questions I need help with! 1. Solve...

alegebra - solve this system of equation using the substitution method. 6x+8y=72...

algebra - What is the solution of the system? Solve the system of equations ...

Substitution Method-Plz help - Use the Substitution method to solve the system ...

substitution method - solve using the substitution method 6x+2y=-14 -5x+y=25 The...

math - Solve the following system using the substitution method: y = 3x - 9 y...

algebra - Solve using the substitution method 6x-3y=18, 6x+3y=-12