45是A.B.C.D四个数的和且满足A+2=B-2=C×2=D÷2A=___B=__C=__D=___
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![45是A.B.C.D四个数的和且满足A+2=B-2=C×2=D÷2A=___B=__C=__D=___](/uploads/image/z/5297419-19-9.jpg?t=45%E6%98%AFA.B.C.D%E5%9B%9B%E4%B8%AA%E6%95%B0%E7%9A%84%E5%92%8C%E4%B8%94%E6%BB%A1%E8%B6%B3A%2B2%3DB-2%3DC%C3%972%3DD%C3%B72A%3D___B%3D__C%3D__D%3D___)
45是A.B.C.D四个数的和且满足A+2=B-2=C×2=D÷2A=___B=__C=__D=___
45是A.B.C.D四个数的和且满足A+2=B-2=C×2=D÷2A=___B=__C=__D=___
45是A.B.C.D四个数的和且满足A+2=B-2=C×2=D÷2A=___B=__C=__D=___
由A+2=2C得:A=2C-2;
由B-2=2C得:B=2C+2;
由C×2=D÷2得:D=4C;
A+B+C+D
=2C-2+2C+2+C+4C=9C=45;
C=5;
A=2C-2=8;
B=2C+2=12;
D=4C=20;
8、12、5、20过程