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Inessa [10]
3 years ago
13

What property will you use to solve this equation; 19+n=30

Mathematics
1 answer:
mr Goodwill [35]3 years ago
6 0

Answer:

i think its multiplication property of equality

Step-by-step explanation:

19 + n = 30

19 + n - 19 = 30 - 19

n = 11

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Answer:

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3 years ago
∠1 and ∠2 are supplementary angles. ∠1 and ∠3 are vertical angles. If m ∠2=72 degrees, then find m ∠3
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