2 years ago

Twice the difference of a number and 9 is 5 Use the variable c for the unknown number.

Mathematics

1 answer:

Leya [2.2K]2 years ago

6 0

Answer:

C = 11.5

Step-by-step explanation:

1. (c - 9) 2 = 5

2. 2c - 18 = 5

3. 2c = 23

4. c = 11.5

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