9. Use the numbers 1, 2, 3, 4, 5, 6, 7 and 8 to fill in the box of the following equation without repetition, so that the equation holds 1+□+□=9+□+□=8+□+□=6+□+□

9. Use the numbers 1, 2, 3, 4, 5, 6, 7 and 8 to fill in the box of the following equation without repetition, so that the equation holds 1+□+□=9+□+□=8+□+□=6+□+□

First add up all the numbers, sum 60, divide by 4, each group is 15, and then fill in the numbers
1+6+8=9+1+5=8+3+4=6+2+7