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(2/5)*y-3/2 = -2/3 // + -2/3
(2/5)*y-3/2-(-2/3) = 0
(2/5)*y-3/2+2/3 = 0
2/5*y-5/6 = 0 // + 5/6
2/5*y = 5/6 // : 2/5
y = 5/6/2/5
y = 25/12
y = 25/12
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