3k+2=42-k - solution

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Solution for 3k+2=42-k equation:

k in (-oo:+oo)

3*k+2 = 42-k // - 42-k

3*k+k-42+2 = 0

4*k-40 = 0 // + 40

4*k = 40 // : 4

k = 40/4

k = 10

k = 10

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