Question

Решите уровнение 2/5*(х-1 3/5)-0,75=3 1/4

Answer 1

0,4*(x-1.6)-0.75=3.25
0.4x-0.64-0.75=3.25
0.4x-1.39=3.25
0.4x=3.25+1.39
0.4x=4.64
x=4.64/0.4
x=11.6

Answer 2

Мое почтение