Ответ:
2(x-3)-(x+4)=x-10
2x-6-x-4=x-10
2x-x-6-4=x-10
x-10=x-10
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Ответ:
2(x-3)-(x+4)=x-10
2x-6-x-4=x-10
2x-x-6-4=x-10
x-10=x-10