1,6b-0,4=3,2-1,6+0,8(2-b). Created by tcimbalenkovlad76547. matematika-ru

1,6b-0,4=3,2-1,6+0,8(2-b)...

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1,6b-0,4=3,2-1,6+0,8(2-b)

Flash3146 1,6b-0,4=3,2-1,6+0,8(2-b)
1,6b-0,4=1,6+1,6-0,8b
1,6b+0,8b=3,2+0,4
2,4b=3,6:2,4
b=1,5

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