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dawa1202
@dawa1202
July 2022
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Решите уравнение:
0.2(х-5)+2.5(8-х)=21.3
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shfly
0.2(х-5)+2.5(8-х)=21.3
0,2х-1+20-2,5х=21,3
-2,3х+19=21,3
-2,3х=21,3-19
-2,3х=2,3
х= -1
3 votes
Thanks 2
mallta
0.2x-1+20-2.5х=21.3
0.2х-2.5х=21.3+1-20
-2.3х=2.3
х=-1
1 votes
Thanks 1
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Answers & Comments
0,2х-1+20-2,5х=21,3
-2,3х+19=21,3
-2,3х=21,3-19
-2,3х=2,3
х= -1
0.2х-2.5х=21.3+1-20
-2.3х=2.3
х=-1