qwerty5728

Verified answer

7(2x-3)+4(3x-2)=14x-21+12x-8= 26x-29
4x(2-a)-4ax= 8x-4ax-4ax=8x-8ax
8n-5(2n-1)= 8n-10n+5=-2n+5
-5k+k(a+5)= -5k+ak+5k=ak

sashaast13

a) 14x-21+12x-8=26x-29

б) 8x-4ax-4ax=8x-8ax

в) 8n-10n+5=-2n+5

г) -5k+ak+5k=ak