Question

Упростите:
А) 4(c-1)-7(c+5)-2(3c+8)
Б) 4/13(6.5n-3 целых 1/4m)+3.2(5/8n-0.5m)

Answer 1

a)4c-4-7c-35-6c-16
(4-7-6)c-(4+35+16)
-9c-(20+35)
-9c -55
б)4/13*(6.5n-3/4)+3.2*5/8n-1.6m
4/13*6.5n-3/13+3.2*0.625n-1.6m
4/13*65/10n-3/13+2n-1.6m
2*5/5n-3/13+2n-1.6m
2n-3/13+2n-1.6m
4n-3/13-1.6m