9x-6x=-14-7
3x=-21
x=-7
Ответ:
9х+7=6х-14
9х-6х=-14-7
3х=-21
х=-21:3
х=-7
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9x-6x=-14-7
3x=-21
x=-7
Ответ:
9х+7=6х-14
9х-6х=-14-7
3х=-21
х=-21:3
х=-7