If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
k = (5/8)*m // - (5/8)*m
k-((5/8)*m) = 0
k+(-5/8)*m = 0
k-5/8*m = 0
x należy do R
x in (-oo:+oo)
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