[tex]\displaystyle 3x+7=2x+7\\3x=2x\\3x-2x=0\\x=0[/tex]
Ответ:
3х+7=2х+7
3х=2х
3х-2х=0
х=0
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[tex]\displaystyle 3x+7=2x+7\\3x=2x\\3x-2x=0\\x=0[/tex]
Ответ:
3х+7=2х+7
3х=2х
3х-2х=0
х=0