4/a+5/b=7/c - solution

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Solution for 4/a+5/b=7/c equation:

x in (-oo:+oo)

4/a+5/b = 7/c // - 7/c

4/a+5/b-(7/c) = 0

4/a+5/b-7*c^-1 = 0

4*a^-1+5*b^-1-7*c^-1 = 0

x naleu017Cy do R

x in (-oo:+oo)

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