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图中9个方框组成4个等式。请在这9个方框中填入1—9九个数字,使这4个等式都成立。注意:1—9这九个数字,每个数字只能填一次。
The four boxes in the figure form four equations. Please fill in the nine boxes 1-9 nine numbers, so that these four equations are true. Note: 1-9 these nine numbers, each number can only be filled once.