Ответ:
-2х+5-7=0
5-2х-7=0
5+5х-7х-7=0
5х*(х+1)-7(х+1)=0
(х=1)*(5х-7)=0
х+1=0
5х-7=0
х=-1
х=
Объяснение:
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Ответ:
-2х+5
-7=0
5
-2х-7=0
5
+5х-7х-7=0
5х*(х+1)-7(х+1)=0
(х=1)*(5х-7)=0
х+1=0
5х-7=0
х=-1
х=
Объяснение: