岩 | X -2Y+3 | 与（2X+3Y-10）的平方互为相反数,试求X+Y的值

通分x/3y与3x/2y^2 通分x/3y与3x/2y^2 x(x-y)2-(y-x)3 [2/3x-2/x+y(x+y/3x-x-y)]/x-y/x 化简：{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x 计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x 多项式与多项式相乘题目!(X+1)(X+2)(X+3) (X-Y)平方-(X+Y)(X-Y)(X+1)(X-2)(X-3) 化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x x³-xy²/x³+2x²y+xy² 与x²-y²/x(x+3y)+y(y-x) 急、、、、 通分x-y/3x+3y与2xy/(x+y)^2 (2x+2y)/(x-y)与2y²/3x通分要过程 (2x+2y)/(x-y)与2y²/3x通分要过程 若|x+3|与|2y-3|互为相反数,求x+y:x-y的值如题 (3x+2y)+(5x-y)i=17-2i.求x与y 3x+y+5与2-4y+2x是同类项,求x,y 若｜x-y-5｜与｜2x+3y-15｜互为相反数,则x+y＝? 若／X+Y-9／+（2X-Y+3)=0求X与Y的值 ：已知x与y互为相反数,且2x-y=3,则x-y=