Mathematics, 24.03.2020 23:18 kendallreed39

1) A number is equal to 7 times itself minus 18. Which is the number?
2) A number is equal to 4 times this number less 75. What is the number?
3) Two times a number, decreased by 12 equals three times the number, decreased by 15. Which is the number?

Answers: 3

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1) A number is equal to 7 times itself minus 18. Which is the number?
2) A number is equal to...