4(3a+1,6)-(5+2a)-3(a-1,2)=

Question

4(3a+1,6)-(5+2a)-3(a-1,2)=

Answer 1

= 12а + 6,4 - 5 - 2а -3а + 3,6 = 7а + 5

Answer 2

12a+6.4-5-2a-3a+3.6=
=12a-2a-3a+6.4-5+3.6=
=7a+5