Пжжжжжжжжжжжжжжжжжжжжжжжжжж!!!!!!!!!!!!!!

Question

Пжжжжжжжжжжжжжжжжжжжжжжжжжж!!!!!!!!!!!!!!

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Answer 1

20х-0,1х=х(20-0,1)=19.9x
а+0,4а=а(1+0,4)=1.4a
b-0.96b=b(1-0.96)=0.04b

Answer 2

20х- 0,1х= х(20-0,1)=19,9x а+ 0,4а= а(1+0,4)=1,4a b- 0,96b=b(1-0,96)=0,04b 100%решение правильное)))))