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1 answer:

Reptile [31]3 years ago

5 0

Hello,
For n°1: 8 solutions:
k= 1
9*-4/-6=6
-5*-2*-8=-80
3*-7* 1=-21
9*-5/ 3=-15
-4/-2*-7=-14
-6*-8* 1=48
=======================================

k= 2
9*-4/-6=6
-5* 2* 8=-80
3* 7*-1=-21
9*-5/ 3=-15
-4/ 2* 7=-14
-6* 8*-1=48
=======================================

k= 3
9*-4/-6=6
5*-2* 8=-80
-3*-7*-1=-21
9* 5/-3=-15
-4/-2*-7=-14
-6* 8*-1=48
=======================================

k= 4
9*-4/-6=6
5* 2*-8=-80
-3* 7* 1=-21
9* 5/-3=-15
-4/ 2* 7=-14
-6*-8* 1=48
=======================================

k= 5
9* 4/ 6=6
-5*-2*-8=-80
3* 7*-1=-21
9*-5/ 3=-15
4/-2* 7=-14
6*-8*-1=48
=======================================

k= 6
9* 4/ 6=6
-5* 2* 8=-80
3*-7* 1=-21
9*-5/ 3=-15
4/ 2*-7=-14
6* 8* 1=48
=======================================

k= 7
9* 4/ 6=6
5*-2* 8=-80
-3* 7* 1=-21
9* 5/-3=-15
4/-2* 7=-14
6* 8* 1=48
=======================================

k= 8
9* 4/ 6=6
5* 2*-8=-80
-3*-7*-1=-21
9* 5/-3=-15
4/ 2*-7=-14
6*-8*-1=48
=======================================

For n°3: 8 solutions:
k= 1
9*-2/-6=6
-5*-1* 7=-80
-4* 9*-3=-21
9*-5/-4=-15
-2/-1* 9=-14
-6* 7*-3=48
=======================================

k= 2
9*-2/-6=6
-5* 1*-7=-80
-4*-9* 3=-21
9*-5/-4=-15
-2/ 1*-9=-14
-6*-7* 3=48
=======================================

k= 3
9*-2/-6=6
5*-1*-7=-80
4* 9* 3=-21
9* 5/ 4=-15
-2/-1* 9=-14
-6*-7* 3=48
=======================================

k= 4
9*-2/-6=6
5* 1* 7=-80
4*-9*-3=-21
9* 5/ 4=-15
-2/ 1*-9=-14
-6* 7*-3=48
=======================================

k= 5
9* 2/ 6=6
-5*-1* 7=-80
-4*-9* 3=-21
9*-5/-4=-15
2/-1*-9=-14
6* 7* 3=48
=======================================

k= 6
9* 2/ 6=6
-5* 1*-7=-80
-4* 9*-3=-21
9*-5/-4=-15
2/ 1* 9=-14
6*-7*-3=48
=======================================

k= 7
9* 2/ 6=6
5*-1*-7=-80
4*-9*-3=-21
9* 5/ 4=-15
2/-1*-9=-14
6*-7*-3=48
=======================================

k= 8
9* 2/ 6=6
5* 1* 7=-80
4* 9* 3=-21
9* 5/ 4=-15
2/ 1* 9=-14
6* 7* 3=48
=======================================

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