x-2x=-11-7
-1x=-18
x=18
Ответ:
х+7=2х-11
2x-11=х+7
х-18=0
х=-18
х=18
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x-2x=-11-7
-1x=-18
x=18
Ответ:
х+7=2х-11
2x-11=х+7
х-18=0
х=-18
х=18