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AleksAgata [21]
3 years ago
15

Two times the first number added to the second number is -7

Mathematics
1 answer:
hodyreva [135]3 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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