Solve using substitution.
y = -3x + 9
y = -2x + 3
(, )

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Asked 4/23/2015 7:07:16 AM

Updated 4/23/2015 10:07:17 AM

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Flagged by yeswey [4/23/2015 10:05:58 AM]

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Question

Asked 4/23/2015 7:07:16 AM

Updated 4/23/2015 10:07:17 AM

1 Answer/Comment

This conversation has been flagged as incorrect.

Flagged by yeswey [4/23/2015 10:05:58 AM]

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y = -3x + 9

y = -2x + 3

substitute y in the first equation the result is:

-2x + 3 = -3x + 9

-2x + 3x = 9 - 3

x = 6

y = -3(6) + 9 = -18 + 9 = -9

the solution for the system y = -3x + 9 y = -2x + 3 is (6, -9)

y = -2x + 3

substitute y in the first equation the result is:

-2x + 3 = -3x + 9

-2x + 3x = 9 - 3

x = 6

y = -3(6) + 9 = -18 + 9 = -9

the solution for the system y = -3x + 9 y = -2x + 3 is (6, -9)

Added 4/23/2015 10:07:17 AM

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Confirmed by Andrew. [4/24/2015 4:31:59 AM]

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