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(7*(2*y-8))/6 = 2*y-7 // - 2*y-7
(7*(2*y-8))/6-(2*y)+7 = 0
(7*(2*y-8))/6-2*y+7 = 0
(7*(2*y-8))/6+(-2*6*y)/6+(6*7)/6 = 0
7*(2*y-8)-2*6*y+6*7 = 0
2*y-56+42 = 0
2*y-14 = 0
(2*y-14)/6 = 0
(2*y-14)/6 = 0 // * 6
2*y-14 = 0
2*y-14 = 0 // + 14
2*y = 14 // : 2
y = 14/2
y = 7
y = 7
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