решение во вложении:
1)(2/3)*m^3*n^-1 или (2/3)*m^3*(1/n)
2)(7y(2x-3))/(7xy)=(2x-3)/x
3)((m-3)(m+3))/(2(m+3))=(m-3)/2
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решение во вложении:
1)(2/3)*m^3*n^-1 или (2/3)*m^3*(1/n)
2)(7y(2x-3))/(7xy)=(2x-3)/x
3)((m-3)(m+3))/(2(m+3))=(m-3)/2