Question

Решите уравнение
20 баллов
5(х+1,2)=12,5х

Answer 1

5х+6=12,5х:     12,5х-5х=6;     7,5х=6;     х=0,8

Answer 2

5(х+1.2) = 12.5х
5х + 6 = 12.5х
5х - 12.5х = -6
-7.5х = -6
х = 0.8