Ainy晴
(342)若x?3??3y?4??0,求xyの值。
(343)若關於x、y的方程6x?5y?2?3Rx?2Ry?4R?0合并同类项后不含y项,求Rの值。 (344)10(x?1)?5 (345)(346)2(y?2)?3(4y?1)?9(1?y) (347)(348)y=1是方程2?27x?15x?13x?2??2?[來源:學+科+網] 3240.8?9x1.3?3x5x?1?? 1.20.20.31(m?y)?2yの解,求關於xの方程m(x?4)?2(mx?3)の解。 3k?x?3k?2?2xの解互為倒數,求kの值。 2(349)方程2?3(x?1)?0の解與關於xの方程
(350) 6x?7?4x?5 (351) 2?(1?y)??2
(352)y?
y?1y?23x?12x?4?2??2??3(x?1) (353) 2632(354)
Ainy晴
設y1?12x?1x?1,y2?,當x為何值時,y1與y2相等? 54Ainy晴
(355)6(1?x)?5(x?2)?2(2x?3) (356)y?y?1y?2?2?
(357)
2x1.2?0.7?x0.3?1
(359)1?2?1??2?1??2?1?2y?3????3?????3??1 ?
(361) 15(3?32x)?3(2?54x)?36.
Ainy晴
25
358)0.4x?0.90.1x?0.50.03?0.02x 0.5?0.2?0.03
360)2?4x?3??5?6?3x?2??2?x?1?
362)2x?36?x?24?1
(( (
(363)
(364)
(365)
Ainy晴
Ainy晴
0.1x?0.40.2x?1.2?1?10.3. 7x?11?0.2x5x?10.024?0.018?0.012. 2??1?x?1?13(x?3)???x110?7x???3??6?2(2x?3)??.
(366)
(367)
(368)
(369)
(370)
Ainy晴
Ainy晴
2x?1?2??x?12(x?1)????13(x?1)
3(x?3)?5?2(2?5x);
2?4x?3??5?6?3x?2??2?x?1?;
15(3?32x)?3(2?54x)?36. 2x?3x?26?4?1;
(371)
(372)
(373)
(374)
(375)
(376)
Ainy晴
Ainy晴
2x?14?x?33?5; x?x?122?x?23?3; 2x?15x?13?6?1; x+2.5?4x?32?34?x8 2x0.7?1.2?x0.3?1; 0.4x?0.90.1x?0.50.03?0.02x0.5?0.2?0.03;