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(7/3)*x-(61/3)-12 = 0
(7/3)*x-61/3-12 = 0
7/3*x-97/3 = 0 // + 97/3
7/3*x = 97/3 // : 7/3
x = 97/3/7/3
x = 97/7
x = 97/7
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