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Cerrena [4.2K]
3 years ago
15

The sum of a number 9 is multiplied by -2 and the answer is -8 find the number.

Mathematics
1 answer:
GalinKa [24]3 years ago
8 0
<h3><u>The missing number is equal to -5.</u></h3>

-2(x + 9)  = -8

<em><u>Distributive property.</u></em>

-2x - 18 = -8

<em><u>Add 18 to both sides.</u></em>

-2x = 10

<em><u>Divide both sides by -2.</u></em>

x = -5

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