Х+(6 2/5-4,91)=5,35
Х+(6,4-4,91)=5,35
х+1,49=5,35
х=5,35-1,49
х=3,86
3,86+1,49=5,35
x+6,4-4,91=5,35
x-5,35-6,4+4,91
x=3,86
Х+(6 2/5-4,91)=5,35
Х+(6,4-4,91)=5,35
х+1,49=5,35
х=5,35-1,49
х=3,86
3,86+1,49=5,35
x+6,4-4,91=5,35
x-5,35-6,4+4,91
x=3,86