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FromTheMoon [43]
2 years ago
12

The sum of eleven and a number is negative nine.

Mathematics
2 answers:
Misha Larkins [42]2 years ago
8 0

Answer:

The sum is 2. ...........

Troyanec [42]2 years ago
4 0

Answer:

11 + x = -9

x = -20

Step-by-step explanation:

"The sum of eleven and a number" can be translated to: 11 + x, where 'x' is the unknown number.

11 + x = -9\\\rule{150}{0.5}\\11 - 11 + x = -9 - 11\\\\\boxed{x = -20}

Hope this helps.

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