5/8x-(1/4x-1/12y)+1/3y
5/8x-(1/4x-1/12y)+1/3y=5/8х-1/4х+1/12у+1/3y=5/8x-2/8x+1/12у+4/12у=3/8х+5/12у
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5/8x-(1/4x-1/12y)+1/3y=5/8х-1/4х+1/12у+1/3y=5/8x-2/8x+1/12у+4/12у=3/8х+5/12у