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

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Mathematics

Lilia

2 September, 04:29

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

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Ignacio Morgan · Answer 1

(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