RandomLollipop
21.03.2021 •
Mathematics
Liu chose an integer. She added 3. Then, she multiplied the sum by -7. The answer was 84. What integer did Liu choose?
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Ответ:
-15
Step-by-step explanation:
let the integer be x.
-7(x+3)=84
Ответ:
Step-by-step explanation:
let the integer be x
(x+3) -7 =84
-7x-21=84
-7x=84+21
-7x=105
divide both sides by -7
x= -15
Ответ:
whats the question?
Step-by-step explanation: