Question

Решите уравнение 7(3х+6)=2 1/3х+98

P.S. 7*(3х+6)=2целые 1/3х +98

Answer 1

7(3х + 6) = 2 1/3х + 98
21х + 42 = 2 1/3х + 98
21х - 2 1/3х = 98 - 42
18 2/3х = 56
56/3х = 56
х = 56 : 56/3
х = 56 * 3/56
х = 3
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Проверка: 7(3 * 3 + 6) = 7/3 * 3 + 98
                  7 * 15 = 7 + 98
                  105 = 105