4-3x等于x+1 x等于几

4-3x等于x+1 x等于几 x+1除以x-1等于3,x等于几? 4x-x等于几 0x等于1,x等于几 3x*4x等于几 x-3分之2-4x+1分之5=1 等于几x等于几 3分之1等于2x-1 x等于几 (x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几? 1+2+3+4+x+98+99 x等于几 2分之3x-1等于5分之4x加2-1 x等于几 4/x+5/x=1,那么x等于几? 5x-3x=1 求x等于几? x+1等于二分之一x-1 X等于几 3分之x加8等于-x x等于几 2x加3x等于30 x等于几 in(x+1)等于几,e^x等于几 4加x等于几 -3x>-5等于几?