Respuesta:
b. (48 - 7 × 6 ÷ 3) - 19
= (48 - 7 × 2) - 19
= (48 - 14) - 19
= (34) - 19
= 34 - 19
= 15
15
Explicación paso a paso:
(48-7×6÷3)-19
(48-42÷3)-19
(48-14)-19
(34)-19
