Упростите 2.5с+1.2+3.6с+5

Question

Упростите 2.5с+1.2+3.6с+5

Answer 1

2,5с+1,2+3,6с+5=6,1с+6,2

Answer 2

2,5с +1,2 +3,6с+ 5 =(2,5с + 3,6с) +(1,2+5) =6,1с +6,2