15 more than twice a number is -23?

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15 more than twice a number is -23?

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Answer 1 · 2018-04-12T01:20:15

The number is $- 19$ $-19$

Explanation:

The number can be represented by $n$ $n$
Twice the number can be represented by $2 n$ $2n$
15 more than twice the number can be represented by $2 n + 15$ $2n+15$

$2 n + 15 = - 23$ $2n+15=-23$

Subtract 15 from both sides

$2 n = - 38$ $2n=-38$

Divide both sides by 2

$n = - 19$ $n=-19$

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15 more than twice a number is -23?

1 Answer

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