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20*((7/10)*y-2)-(13*y) = -35 // + 35
20*((7/10)*y-2)-(13*y)+35 = 0
20*((7/10)*y-2)-13*y+35 = 0
20*(7/10*y-2)-13*y+35 = 0
20*(7/10*y-2)-13*y+35 = 0
y-40+35 = 0
y-5 = 0
y-5 = 0
y-5 = 0 // + 5
y = 5
y = 5
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