Question

упростите выражения 5a+12.4+2.6+3.14+1.4a+0.4a+2.4. 13.4+6+5.6+8.2b+7.28+1.7b+2.3

Answer 1

 5a+12.4+2.6+3.14+1.4a+0.4a+2.4.=6,8а+20,54

13.4+6+5.6+8.2b+7.28+1.7b+2.3=9,9b+34,58

 

Answer 2

 5a+12.4+2.6+3.14+1.4a+0.4a+2.4=6.8а20.34

13.4+6+5.6+8.2b+7.28+1.7b+2.3=34.58+9.9b