1.25a+2a+(-0.85a)-(-3a)

Question

1.25a+2a+(-0.85a)-(-3a)

Answer 1

1,25а+ 2а +(-0,85а)-(-3а)= 1,25а +2а-0,85а+3а= 5,4а

Answer 2

1.25a+2a+(-0.85a)-(-3a)= 3.25а+2.15а=5.4а

 

ответ 5.4