Упростите :
1,8а-0,9 +а-0,1а
1,8а-0,9а-0,1а=(1,8-0,9-0,1)*а=0,8а
ОТВЕТ:0.8а
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Verified answer
1,8а-0,9а-0,1а=(1,8-0,9-0,1)*а=0,8а
ОТВЕТ:0.8а