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Leona [35]
3 years ago
7

I need the help as soon as possible

Mathematics
2 answers:
svlad2 [7]3 years ago
8 0

Answer:

A

Step-by-step explanation:

if at 8a.m the temperature was at -7degrees and by noon the temperature increased by 7 all you need to do is add 7 to -7 which cancels out to give you 0.

Minchanka [31]3 years ago
7 0

Answer:

a is true

Step-by-step explanation:

its because 7+(-7) =0 so a is correct

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Step-by-step explanation:

Substitute the y in the 1st equation with the 2nd equation.

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Answer:

Step-by-step explanation:

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