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Elanso [62]
2 years ago
15

Please help. I gotta show my work to-​

Mathematics
1 answer:
valina [46]2 years ago
6 0

Answer:

Answer below.

Step-by-step explanation:

1. a + 19 | 10 + (a + 9) = a + 19

10 + 9 = 19

a + 19

_____________________________

2. (C + 2/3) + 1/2 = C + 7/6

2/3 = 4/6

1/2 = 3/6

4/6 + 3/6 = 7/6

C + 7/6

______________________________________

3. 5 (4n) = 20n

5 x 4n = 20n

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