7k+10=-2k+100

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Solution for 7k+10=-2k+100 equation: 


k in (-oo:+oo)

7*k+10 = 100-2*k // - 100-2*k

7*k-(-2*k)-100+10 = 0

7*k+2*k-100+10 = 0

9*k-90 = 0 // + 90

9*k = 90 // : 9

k = 90/9

k = 10

k = 10

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