1.若a+1/2比5-a/3大1,则a的值是?A.8/5 B.13/5 C.8 D.13 (注意写思路)
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1.若a+1/2比5-a/3大1,则a的值是?A.8/5 B.13/5 C.8 D.13 (注意写思路)
1.若a+1/2比5-a/3大1,则a的值是?A.8/5 B.13/5 C.8 D.13 (注意写思路)
1.若a+1/2比5-a/3大1,则a的值是?A.8/5 B.13/5 C.8 D.13 (注意写思路)
(a+1)/2-(5-a)/3=1 两边乘6
3(a+1)-2(5-a)=6
3a+3-10+2a=6
5a=13
a=13/5
选B