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1. 3x + y = 11
5x - y = 21

User Yasu
by
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1 Answer

3 votes

Answer:

[4, -1]

Explanation:

Using the Elimination Method:

3x + y = 11

5x - y = 21

__________

8x = 32

__ ___

8 8

x = 4 [Plug this back into both equations to get the y-coordinate of -1]; -1 = y

The y's are already additive inverses [result in 0], canceling each other out.

I am joyous to assist you anytime.

User Djuna
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