mikurrjurdan
15.12.2021 •
Mathematics
Exactly seven years ago, Sam was 5 times the age of Janet. Exactly two years ago, Sam was 3 times the age of Janet. What is the sum of their ages today?
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Ответ:
Shall we begin?
- 4x + 3 = -1
-4x = - 1 - 3
-4x = - 4 *(-10
4x = 4
x = 4/4
x = 1
Answers: x=1