Ответ:
8)
9)
10)
-75х -195 = -120х +156
-75х+120х=156+195
45х=341
х=39/5
х=7,8
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Ответ:
8)
9)
10)
-75х -195 = -120х +156
-75х+120х=156+195
45х=341
х=39/5
х=7,8