Ответ:
5х+11=36.
5х=36-11.
5х=25.
х=5.
10х=8х-5.
10х-8х=-5.
2х=-5.
х=-2,5.
7,5х+2=7,4х+4.
7,5х-7,4х=4-2.
0,1х=2.
х=20.
5(х-7)=3(х-4)-27.
5х-35=3х-12-27.
5х-3х=-12-27+35.
2х=20.
х=10.
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Answers & Comments
5х=25
х=25:5
х=5
Ответ:
5х+11=36.
5х=36-11.
5х=25.
х=5.
10х=8х-5.
10х-8х=-5.
2х=-5.
х=-2,5.
7,5х+2=7,4х+4.
7,5х-7,4х=4-2.
0,1х=2.
х=20.
5(х-7)=3(х-4)-27.
5х-35=3х-12-27.
5х-3х=-12-27+35.
2х=20.
х=10.