Question

помогите ПЖ СРОЧНО
N 1307 aбв

Answer 1

5m-(3m+5)+(2m-4)=5m-3m-5+2m-4=4m-9
-5 (x+3)+4 (x-2)-6 (2x+1)=-5x-15+4x-8-12x-6=-13x-29
0,2 (6x-5)-4 (0,2x-2)=1,2x-1-0,8+8=0,4x+7