X-1/2(x-3)=9

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Solution for X-1/2(x-3)=9 equation: 


x in (-oo:+oo)

X-((1/2)*(x-3)) = 9 // - 9

X-((1/2)*(x-3))-9 = 0

(-1/2)*(x-3)+X-9 = 0

X-1/2*(x-3)-9 = 0

X-1/2*(x-3)-9 = 0

X-1/2*x-9+3/2 = 0

X-1/2*x-15/2 = 0

X-1/2*x-15/2 = 0

X-1/2*x-15/2 = 0 // - X-15/2

-1/2*x = -(X-15/2) // : -1/2

x = (-(X-15/2))/(-1/2)

x = -2*(15/2-X)

x = -2*(15/2-X)

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