2k+4=49-7k

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Solution for 2k+4=49-7k equation: 


k in (-oo:+oo)

2*k+4 = 49-(7*k) // - 49-(7*k)

2*k+7*k-49+4 = 0

9*k-45 = 0 // + 45

9*k = 45 // : 9

k = 45/9

k = 5

k = 5

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