theimpossibleduck theimpossibleduck

20-01-2017
Mathematics

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1/6s - 1/2(s-2) = 45/2

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kaurparamvir kaurparamvir

20-01-2017

(1/6)*s-((1/2)*(s-2)) = 45/2 // - 45/2

(1/6)*s-((1/2)*(s-2))-(45/2) = 0

(-1/2)*(s-2)+(1/6)*s-45/2 = 0

s/6-1/2*(s-2)-45/2 = 0

(-1/2*2*6*(s-2))/(2*6)+(2*s)/(2*6)+(-45*6)/(2*6) = 0

2*s-1/2*2*6*(s-2)-45*6 = 0

12-4*s-270 = 0

-4*s-258 = 0

(-4*s-258)/(2*6) = 0

(-4*s-258)/(2*6) = 0 // * 2*6

-4*s-258 = 0

-4*s-258 = 0 // + 258

-4*s = 258 // : -4

s = 258/(-4)

s = -129/2

s = -129/2

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