k/2+5=7

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Solution for k/2+5=7 equation: 


k in (-oo:+oo)

k/2+5 = 7 // - 7

k/2-7+5 = 0

1/2*k-2 = 0 // + 2

1/2*k = 2 // : 1/2

k = 2/1/2

k = 4

k = 4

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