Homework Help: calculus

Posted by kelly on Sunday, December 2, 2007 at 6:07pm.

Solve the system by the method of your choice. Identify systems with no solutions and systems with infinitely many solutions, using set notation to express their solutions:
x + y = 3
-2 + y = -3

(0 ,-5)
(0 , 0)
(-2 ,-1)
(-2,-3)

calculus - kelly, Sunday, December 2, 2007 at 6:07pm
x + y = 3 should be - 3
calculus - drwls, Sunday, December 2, 2007 at 7:31pm
If -2+y = -3, then y = -1
If also x+y = -3, then
x-1 = -3 and x = -2
(-2,-1) is the answer
- calculus - Kelly, Sunday, December 2, 2007 at 7:37pm
  .
  - calculus - Kelly, Sunday, December 2, 2007 at 7:40pm
    thanks thats what I had I just wasn't sure if -2 + y = -3 (-2,-1) if I multipied -2(-2, -1)

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