(6x+3)/9+(7x+8)/3=-15

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Solution for (6x+3)/9+(7x+8)/3=-15 equation: 


x in (-oo:+oo)

(6*x+3)/9+(7*x+8)/3 = -15 // + 15

(6*x+3)/9+(7*x+8)/3+15 = 0

(3*(6*x+3))/(3*9)+(9*(7*x+8))/(3*9)+(3*9*15)/(3*9) = 0

3*(6*x+3)+9*(7*x+8)+3*9*15 = 0

81*x+81+405 = 0

81*x+486 = 0

(81*x+486)/(3*9) = 0

(81*x+486)/(3*9) = 0 // * 3*9

81*x+486 = 0

81*x+486 = 0 // - 486

81*x = -486 // : 81

x = -486/81

x = -6

x = -6

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