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EleoNora [17]
3 years ago
12

19 – (-11) = Express your answer as an integer.

Chemistry
2 answers:
stich3 [128]3 years ago
8 0

use the keep,change,change method.

19 + 11

19,keep, "-" change to addition, -11,change to positive

now use this

19 + 11 = (30 )

horsena [70]3 years ago
5 0

Answer:

30

Explanation:

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