Page 13 - MATRIK SMK KELAS X_NAOMI TRI MADA

 1 x 7 + 2 x 8 

1 x 5 + 2 x 6

=  

 3 x 7 + 4 x 8 
3 x 5 + 4 x 6

 17 23 

=  

 39 53 

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