Номер 226 прошу!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question

Номер 226 прошу!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Answer 1

1)x+3,82=7
x=7-3,82
x=3,18
2)28,9-x=5,347
x=5,347-28,9
x=-23,553
3)x-23,427=6,873
x=6,873+23,427
x=30,3
4)(81-x)+27,8=39,15
(81-x) =39,15-27,8
(81-x) =11,35
x=11,35:81
x=0,14...