2x+3/x+1-4x+5/4x+4=3x+3/3x+1
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2x+3/x-3x+1.25x+4=3x+x+1
2x+3x-9x+125/10+4=4x+1
5x-9x+25/2+4=4x+1
5x-9x-4x=1-25*2-4
-18x=-45
x=45/18
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