X+X+Y+Y+Y=51 X+X+X+Z+Z=84 Z=X+X 这三个数是多少
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![X+X+Y+Y+Y=51 X+X+X+Z+Z=84 Z=X+X 这三个数是多少](/uploads/image/z/266782-22-2.jpg?t=X%2BX%2BY%2BY%2BY%3D51+X%2BX%2BX%2BZ%2BZ%3D84+Z%3DX%2BX+%E8%BF%99%E4%B8%89%E4%B8%AA%E6%95%B0%E6%98%AF%E5%A4%9A%E5%B0%91)
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X+X+Y+Y+Y=51 X+X+X+Z+Z=84 Z=X+X 这三个数是多少
X+X+Y+Y+Y=51 X+X+X+Z+Z=84 Z=X+X 这三个数是多少
X+X+Y+Y+Y=51 X+X+X+Z+Z=84 Z=X+X 这三个数是多少
把Z=X+X代入 X+X+X+Z+Z=84得7X=84,X=12,所以Z=24
又12+12+Y+Y+Y=51,所以Y=9
这三个数是X=12,Y=9,Z=24
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