JusSomeRandomGuy
06.07.2019 •
Mathematics
The sum of a number 9 is multiplied by -2 and the answer is -8 find the number.
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Ответ:
-2(x + 9) = -8
Distributive property.
-2x - 18 = -8
Add 18 to both sides.
-2x = 10
Divide both sides by -2.
x = -5
Ответ:
Step-by-step explanation:
Rule of Addition: The probability that event A or event B occurs is equal to the probability that event A occurs plus the probability that event B occurs minus the probability that both events A and B occur. Mathematically, it sounds
In your case,
so