已翻译信息窗3解方程

1、1?灄 ?80? 5 - ?ssi ? ? 1- ?0?灄? ?,0? 8t灄t ? 3? ?tet?a?: ?t ? ax=b? ?0a xa=b ?n ?t ?y ?n1 ?ad?2?r?s? ?s ? ? ?t0? ?0 ? ?s灄 ?i0? ?s? ?s? tsi .?s?t0? ?0s?31.?s? ?0i ?s ? ? ?s? ?0i ?s ? ?s? ?5 - ?50 ? ?ia8? ? ?is? ?t0? ?0 ? ? ?s? ?0i ?a ts?. ?s? ?0s0i ?i8? ?8?s?s? ?0i ?a ts? .2.?a?d? ?t? ?na .x+4.7=12x4=2

2、41.5+x=103.5+x=648? ?si?0 ?i?t ?s?5i 0? ?i0? ?i? .?a?5? a0?灄 ?8? 1500 i8? ?t058? ?x? a?05 ?i?l?0 8? ?si?0 ?0 3 ?s00? ? .58?si?0?i?t?s?5i0?i0?i?.?a?5?a0?灄?8?1500i8?t058?x?a?05?i?l?08?si?0?03?s00?.a?05 ?i?l?0 8? ?si?0 ?0 ?灄? ?0 ? ?t0 ?0i?i5? ?6t ?0?50 ?s?0 ?a?0?t? ?0?i ?i .3 ?t? r?01 ?a? ?0?=? ? r?01

3、?a? ?ra ?0?3x=1500? l?i ?8? ?s?8? ?i? ?sil?!? ?ili?0? ?710 x ?a?d? on ?r?01 ?1 ? ?a?0? ? ?a ?.55 10 x 866 10 x ?a?d? on ?r?01 ?1 ? ?a?0? ? ?a ?.22 10 x 0a0 ?0s0a ?a0? ?t?t?n? ? ?t? ?a?a0 ?s? ? ?si8? ?8 ? ?0x5 8 ?i?0 ?0i?i? ?i ?005 (?灄s05 0 ?005 ti?05) s? l?i s? l?i ?灄,? ?s t05 .9 ?s? ? ?si8? ?8 ? ?0

4、x5 8 ?i?0 ?0i?i? ?i ?005 s? l?i s? l?i ?灄,? ?s t05 .?s? ? ?i8? ?8 ?0 ?0 ?005 t?5 ?10 ?s? ? ?si8? ?8 ? ?0x5 8 ?0 ?0i?i? ?i ?0x5 8 ?i?0 ?00? ( 0 ? ?i0?) ? ?5 - ?50 li8? l?i ? t05 . s? ?i0t0tx2:11 3x+4=40123x+4=40 3x+4-4=40-4 3x=363x3x ? ? ? x x?侠?侠n?n?e0?t? ?a3x+4=40?na：3x+4-4=40-4 3x=36 x=123x 3 =36

5、3?侠?侠n? x=12 : ? ? t? 0? ta1 ?t? ? ? =3x+4 =312+4 =40 = ?t? ? ?0?tn x=12 ? ?t? ?tna ta? . ? ?a?t?te1:? 0?1r? ?tn1 ? ? ? ?a?t?te2:? 0?1r? ?a?d ? ?侠?d13?n?!?08?i ?i? 14?s? ?0i:（1）12x=36(2)x9=13（3）6+x=6.6(4)x-54=108?na：12x12=3612x=3?na：x99=139x=117?na：6+x-6=6.6-6x=0.6?na ：x-54+54=108+54x=16215x8?5 ?i0?

6、x ?,?5? ?s?0i? x ? ? ?s? ?0i t05 .16?nt ?1 1.? ?a?a?te ?aa0? ? ?t? ?t?ta? . （1）x94300 （2） x4259 x9494300 x4242 59 x x（3）4x64 （4） x153 4x464 x15 3 x x944241610120615154517-5-51621628+8+811.2511.252.24?侠?侠n? : 8 x= ? ? t? 0? ta1 =2x+5 ?t? ? ?=28+5 =21?t? ? ? = 0?tn8 x=? ?t? ?tna ta? . ?侠?侠n? : 2.24 x=

7、 ? ? t? 0? ta1 =5x-8 ?t? ? ? =52.24-8 =3.2 = ?t? ? ? 0?tn2.24 x=? ?t? ?tna ta? . 18 ? ?5?0? ?i? 8?i ?0? 420?8? 8?. ?t ?ts?t?t 28 8? ? ?s? ?灄? 8? ts? ?na :? x ?a ? t1 .28x=42028x28=42028x=15 ?r?0 :? 15 ?t194.1996?a12-?a0? 4-?侠 ?t?t? ?a0? ?t0? ?0? ?t 0?a ?. 490 ?at ?t ?0a ?a ?侠?侠a ? 7 ?0? ?tt? ? 1997-?a 7-?a0? 4-?侠 0?0t ?0? ?0? o?侠? ?a?1 . ?t?t? ?a0? r?t? ?0?y ? ?y raa0? ?01 a?0at ?a?t tat? ?0 : ?ti灄t ?a? 8t5 ?0? ?s 8? i? x 8?is? ?8?5s? t灄t ?a ?a8?i ?s? .7x=4.97x7=4.97x=0.7? : ?8? ?a? ?灄ti灄t