Question

Упростите выражение:
46+а+24+а;
25*9*b*4;
96*7+4*7;
57+b+43+b;
89*6-9*6;
72*5+28*5.

Answer 1

а+(46+24)=а+70
b*(25*4)*9=b*100*9=900b
7*(96+4)=7*100=700
b+(57+43)=b+100
6*(89-9)=6*80=480
5*(72+28)=5*100=500