x和y等于几

x和y等于几 x、y等于几 x等于几Y等于几 x加y的和,除以x后等于2,问x除以y等于几? X加Y=320 X等于Y加Y加Y X和Y各等于几 x除以十等于y.x和y的最大公因数是几?最小公倍数是几. x+y=0 x-y=2 x和y分别等于几? x一y=120 x÷y=3 x和y分别等于几? x乘以y等于几 X加Y等于几 (X+Y)^2等于几 X+Y等于几呵呵? x加y等于几? (-x+y)(x-y)等于几 2x-3等于y xy等于209,那么x和y是几? 如果X加Y等于10,那X和Y等于几 x和y互为倒数,那么,xy+2等于几 8x=3y(x和y都不是0）那么x分之y等于几分之几?