1/3x-7=21

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Solution for 1/3x-7=21 equation: 


x in (-oo:+oo)

(1/3)*x-7 = 21 // - 21

(1/3)*x-21-7 = 0

1/3*x-28 = 0 // + 28

1/3*x = 28 // : 1/3

x = 28/1/3

x = 84

x = 84

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