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(2*(7*x-1)^1)/3-4 = 0
(2*(7*x-1))/3-4 = 0
(2*(7*x-1))/3+(-4*3)/3 = 0
2*(7*x-1)-4*3 = 0
14*x-14 = 0
(14*x-14)/3 = 0
(14*x-14)/3 = 0 // * 3
14*x-14 = 0
14*x-14 = 0 // + 14
14*x = 14 // : 14
x = 14/14
x = 1
x = 1
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