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AleksAgata
[21]
4 years ago
15
Two times the first number added to the second number is -7
Mathematics
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answer:
hodyreva
[135]
4 years ago
8
0
2a+b=-7
5a+b=-13
b=-2a-7
5a-2a-7=-13
3a=-6
a=-2=first number
2(-2)+b=-7
-4+b+-7
b=-3=second
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