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natulia [17]
3 years ago
8

What number must be added to -9 to equal +4?

Mathematics
1 answer:
Vlad1618 [11]3 years ago
8 0

Answer:

13

Step-by-step explanation:

let the unknown number be <em>x</em>

<em>x + ( - 9) = 4 \\ x - 9 = 4 \\ x = 4 + 9 \\ x = 13</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em>

<em>Can</em><em> </em><em>I</em><em> </em><em>have</em><em> </em><em>the</em><em> </em><em>brainliest</em><em> </em><em>please</em><em>?</em>

<em>Have</em><em> </em><em>a</em><em> </em><em>nice</em><em> </em><em>day</em><em>!</em><em> </em>

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