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Леночка111
@Леночка111
July 2022
2
5
Report
8х-13=20-7х
31-6х=5-20х
9-7х=5х+37
7х-2=15х-60
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Answers & Comments
Stasyarep
1)х=2,2
2)-1,85
3)-2,3
4)7,25
0 votes
Thanks 1
ivawka2006
8х-13=20-7х
8х+7х=20+13
15х=33
х=33:15
х=2,2
31-6х=5-20х
-6х+20х=5-31
14х=-26
х= -13/7
х= -1 6/7
9-7х=5х+37
9-37=5х+7х
-28=12х
х= -28:12
х= -7/3
х= -2 1/3
7х-2=15х-60
7х-15х=2-60
-8х= -58
х=7,25
1 votes
Thanks 2
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Answers & Comments
2)-1,85
3)-2,3
4)7,25
8х+7х=20+13
15х=33
х=33:15
х=2,2
31-6х=5-20х
-6х+20х=5-31
14х=-26
х= -13/7
х= -1 6/7
9-7х=5х+37
9-37=5х+7х
-28=12х
х= -28:12
х= -7/3
х= -2 1/3
7х-2=15х-60
7х-15х=2-60
-8х= -58
х=7,25