7X+(3X-9)/2=252

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Solution for 7X+(3X-9)/2=252 equation: 


X in (-oo:+oo)

(3*X-9)/2+7*X = 252 // - 252

(3*X-9)/2+7*X-252 = 0

(3*X-9)/2+(2*7*X)/2+(-252*2)/2 = 0

3*X+2*7*X-252*2-9 = 0

17*X-504-9 = 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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