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(1/3)*x-6 = -53/9 // + -53/9
(1/3)*x-(-53/9)-6 = 0
(1/3)*x+53/9-6 = 0
1/3*x-1/9 = 0 // + 1/9
1/3*x = 1/9 // : 1/3
x = 1/9/1/3
x = 1/3
x = 1/3
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