(X-Y)+2=(Y-X)+(16-Y)
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(X-Y)+2=(Y-X)+(16-Y)(X-Y)+2=(Y-X)+(16-Y)(X-Y)+2=(Y-X)+(16-Y)(X-Y)+2=(Y-X)+(16-Y)2x-2y+y-16+2=02x-y=1
(X-Y)+2=(Y-X)+(16-Y)
(X-Y)+2=(Y-X)+(16-Y)
(X-Y)+2=(Y-X)+(16-Y)
(X-Y)+2=(Y-X)+(16-Y)
2x-2y+y-16+2=0
2x-y=14
不定方程,通常有好多个答案的,未知数应该有些约束条件的吧,比如,都是自然数,而且有范围(一般根据应用题的题干得出)。简化为2X-Y=14,随便取一组x=8,y=2
(X-Y)+2=(Y-X)+(16-Y)
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