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21x - 12y = -15 - 7x + 4y = 5
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21x - 12y = -15
- 7x + 4y = 5

User Etherous
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1 Answer

3 votes

Answer:

0

Explanation:

_7x+4y=5 *(3)

_21x+12y=15

21x_12y=_15

____________

If I am right

I think !that is the answer

User Neil Shweky
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