3X+(3X-9)+((3X-9)/2)+X=243

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Solution for 3X+(3X-9)+((3X-9)/2)+X=243 equation: 


X in (-oo:+oo)

(3*X-9)/2+3*X+3*X+X-9 = 243 // - 243

(3*X-9)/2+3*X+3*X+X-243-9 = 0

(3*X-9)/2+(2*3*X)/2+(2*3*X)/2+(2*X)/2+(-243*2)/2+(-9*2)/2 = 0

3*X+2*3*X+2*3*X+2*X-243*2-9*2-9 = 0

9*X+6*X+2*X-486-18-9 = 0

15*X+2*X-486-18-9 = 0

17*X-486-18-9 = 0

17*X-495-18 = 0

17*X-513 = 0

(17*X-513)/2 = 0

(17*X-513)/2 = 0 // * 2

17*X-513 = 0

17*X-513 = 0 // + 513

17*X = 513 // : 17

X = 513/17

X = 513/17

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