28/-4=3m-7m - solution

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Solution for 28/-4=3m-7m equation:

m in (-oo:+oo)

28/(-4) = 3*m-(7*m) // - 3*m-(7*m)

7*m-(3*m)+28/(-4) = 0

7*m-3*m+28/(-4) = 0

4*m-7 = 0 // + 7

4*m = 7 // : 4

m = 7/4

m = 7/4

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