Mathematics
Junior High
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求解謝謝🙇(24題)
b-9= α-b
c-b=b-c
3α=>b, 3α=>b
a
24. 已知a≠b=c,且
al
b
b
b²—a 3 c = (c-b) = 46-(6-0)
C
=2:3,
b-c c-b
3:4,則a:b:c=?
(A)2 3 4 (B)4:32 (C)2(-3):4
(D)4(-3):2
30=4b
-30-46
25. (2x+1)(3y+2) (4z+3)=1:23 xyz 0,
求x:y:z為何?
(A)7 9 11 (B)6: 89 (C)4:5:7 (D)3 4:6
3yxx=4x+x, 82x6 = 947α
5. %/377 (a+b);(h+
設
3:49
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