Решите уравнение 2 1\5 * x + 4\5 = 1

2 1/5 • x + 4/5 = 1

2 1\5 *X =1 - 4\5=1\5

2 1\5 * x= 1\5

2 1/5 • x + 4/5 = 1 2 1/5 • x = 1 - ( 4/5 ) 2 1/5 • x = 1/5 X = 1/5 : 11/5 X = 1/11

2 1/5*х+4/5=12 1/5*х=1-4/52 1/5*х=1/5х=1/5:11/5х=1/11проверка2 1/5*1/11+4/5=111/5*1/11+4/5=11/5+4/5=11=1