Ответ:
1.
3)8х+21-6х=4х+3
2х+21=4х+3
2х-4х=3-21
-2х= -18
х=9
4) 23-12х-32=1-17х
-9-12х=1-17х
-12х+17х=1+9
5х=10
х=2
2.
3)у= -4
4) у= -36
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Answers & Comments
Ответ:
1.
3)8х+21-6х=4х+3
2х+21=4х+3
2х-4х=3-21
-2х= -18
х=9
4) 23-12х-32=1-17х
-9-12х=1-17х
-12х+17х=1+9
5х=10
х=2
2.
3)у= -4
4) у= -36