1/3x+1/5x+1/6x=21

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Solution for 1/3x+1/5x+1/6x=21 equation: 


x in (-oo:+oo)

(1/3)*x+(1/5)*x+(1/6)*x = 21 // - 21

(1/3)*x+(1/5)*x+(1/6)*x-21 = 0

7/10*x-21 = 0 // + 21

7/10*x = 21 // : 7/10

x = 21/7/10

x = 30

x = 30

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