Respuesta:
1,134 ..............................
420
Explicación paso a paso:
7(10+7)=7x10 + 7x7
7x17=70+49
119=119
7 (40+3)= 7x 40 + 7x 3
7(43)= 280+21
301=301
119+301= 420
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Respuesta:
1,134 ..............................
Verified answer
Respuesta:
420
Explicación paso a paso:
7(10+7)=7x10 + 7x7
7x17=70+49
119=119
7 (40+3)= 7x 40 + 7x 3
7(43)= 280+21
301=301
119+301= 420