1/3x+1/7x=80

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Solution for 1/3x+1/7x=80 equation: 


x in (-oo:+oo)

(1/3)*x+(1/7)*x = 80 // - 80

(1/3)*x+(1/7)*x-80 = 0

10/21*x-80 = 0 // + 80

10/21*x = 80 // : 10/21

x = 80/10/21

x = 168

x = 168

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