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(7*(y-2))/2 = -2*y // + -2*y
(7*(y-2))/2-(-2*y) = 0
(7*(y-2))/2+2*y = 0
(7*(y-2))/2+(2*2*y)/2 = 0
7*(y-2)+2*2*y = 0
11*y-14 = 0
(11*y-14)/2 = 0
(11*y-14)/2 = 0 // * 2
11*y-14 = 0
11*y-14 = 0 // + 14
11*y = 14 // : 11
y = 14/11
y = 14/11
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