Ответ:
8х+2х-3х=10х-3х=7х
х=1/2
7х=7×1/2=3.5
х=1/7
7х=7×1/7=1
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Ответ:
8х+2х-3х=10х-3х=7х
х=1/2
7х=7×1/2=3.5
х=1/7
7х=7×1/7=1