Odpowiedzi

2010-02-20T22:04:00+01:00
7x+3xy-7x = 3xy
-6x+5x-x = -2x
-2x-8x+4x = -6x
-15x+13x = -2x
-6xy+3xy+6xy = 3xy
12x²y-5x²y-10x²y = -3x²y
5xy-9xy+7xy = 3xy
-10xy+2x+13xy-2x = 3xy
-16x²y+5x²y+8x²y = -3x²y
6x+3x+10x = 19x
-6x+3x+10x = 7x