Question

19,8y-12,6y+4,37+3,1y при=2,1

Answer 1

10.3у+4.37

10.3*2.1+4.37=21.63+4.37=26

Answer 2

19,8 . 2.1 -12,6 . 2,1+3,1 . 2,1=41.58-26.46+6.51=21.63