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April 16, 2014

Homework Help: Algebra 2 Helpp :(

Posted by Robert on Tuesday, October 23, 2012 at 2:39pm.

QUESTIONS (vvv)
(1) Solve the system by subsitution
2x + y = -11
3 - 4y = 11
(2) Solve the system by elimination
2x + 6 = -12
5x - 5y = 10
(3) What is the solution of the following system?
-3x - 2y = -12
9x + 6y = -9
(4) What is the solution of the following system?
x - y = 11
-x + y = -1

ANSWERS (vv)
(1)
(3, 5)
(5, 3)
(3, 5)
(5, 3)

(2)
(2, 1)
(0, 2)
(2, 0)
(1, 2)

(3)
(2, 1)
no solutions
(2, 1)
infinitely many solutions

(4)
(3, 4)
no solutions
infinitely many solutions
(3, 4)

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