3/10+4k=-1/2k-21/5

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Solution for 3/10+4k=-1/2k-21/5 equation: 


k in (-oo:+oo)

4*k+3/10 = (-1/2)*k-(21/5) // - (-1/2)*k-(21/5)

4*k-((-1/2)*k)+3/10+21/5 = 0

4*k+(1/2)*k+3/10+21/5 = 0

9/2*k+9/2 = 0 // - 9/2

9/2*k = -9/2 // : 9/2

k = -9/2/9/2

k = -1

k = -1

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