4 years ago

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

Mathematics

1 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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