1/2x+2/3x=7

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Solution for 1/2x+2/3x=7 equation: 


x in (-oo:+oo)

(1/2)*x+(2/3)*x = 7 // - 7

(1/2)*x+(2/3)*x-7 = 0

7/6*x-7 = 0 // + 7

7/6*x = 7 // : 7/6

x = 7/7/6

x = 6

x = 6

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