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minhsd0110
2 năm trước
Tính giá trị biểu thức 1) A = x - (y -z +t) với x =-5;y = 2;z = -3;t = 1 2)B= 13- x-(y-z+3-x) với x=2006;y=-3;z=14 3) C=x-15+(14-x+ y-z) với x=123456789;y=5;z=-1
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