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duytin0000
2 năm trước
Cho x = -98 , a = 61 , m = -25 . Tính giá trị các biểu thức sau : 1 , x+8-x-22 2 , -x-a+12+a 3 , a-m+7-8+m 4 , m-24+x+24-x
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