Ответ:
х = 7
Объяснение:
1/5(5 3/5х - 2 1/2) = 5, 12х - 28 1/2
28/25 х - 5/10 = 5,12х - 28 1/2
5,12х - 1,12х = 28 1/2 - 1/2
4х = 28
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Ответ:
х = 7
Объяснение:
1/5(5 3/5х - 2 1/2) = 5, 12х - 28 1/2
28/25 х - 5/10 = 5,12х - 28 1/2
5,12х - 1,12х = 28 1/2 - 1/2
4х = 28
х = 7