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23 votes
23 votes
-3х + бу = -27
3х – бу = 27

User Gabriel Burt
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1 Answer

6 votes
6 votes

Explanation:

-3x + 6y = -27 |-1×|

3x - 6y = 27 |1×|

3x - 6y = 27

3x - 6y = 27

Two equations are similar.

X,Y element R

User SpFW
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