7x-18x+25x-6x= -0,3b-1,4b+3,1b+0,7b= 11a-16b-18a+9b= -0,8k+0,9p-1,7k+0,5k+1,4p= HELP PLS

Question

7x-18x+25x-6x=
-0,3b-1,4b+3,1b+0,7b=
11a-16b-18a+9b=
-0,8k+0,9p-1,7k+0,5k+1,4p=

HELP PLS

Answer 1

1)=8х
2)=2.1b
-14b
4)=0.3p