4х+5=2х-7
4х-2х=-7-5
2х=-12
х= -12:2
х= -6
Ответ:
2х=-12 | : 2
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4х+5=2х-7
4х-2х=-7-5
2х=-12
х= -12:2
х= -6
Ответ:
4х-2х=-7-5
2х=-12 | : 2
х= -6