Question

Imi puteti rezolva si mie acest exercitiu:
(56×13)×a=56×(13×42)

Answer 1

(56×13)×a=56×(13×42)
728×a=56×546
728a=30576
a=30576÷728
a=42

Answer 2

$a=\frac{\not56\cdot\not13\cdot42}{\not56\cdot\not13}=42$