sabrinarasull1pe6s61
18.09.2021 •
Mathematics
A certain number is multiplied by 2, and then 7 is added to the result. The final number is 331. What was the original number? HELP PLEASE
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Ответ:
Ответ:
x=162
Step-by-step explanation
2x+7=331
2x=324
x = 162
Ответ:
so you can drive 26miles on one gallon
then do 78/26 which equals 3
so you used 3 gallons of gas on trip 2