Respuesta:
20
Explicación paso a paso:
10x5= 50 50-28 = 22
7x4= 28
--------------
12x7= 84 84-75= 9
15x5= 75
6x11= 66 66-56= 10--->X
7x8= 56
2X = 2(10) =20
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Respuesta:
20
Explicación paso a paso:
10x5= 50 50-28 = 22
7x4= 28
--------------
12x7= 84 84-75= 9
15x5= 75
--------------
6x11= 66 66-56= 10--->X
7x8= 56
--------------
2X = 2(10) =20