Question

(A x1 -a:1): ( a x 1883+543)

Answer 1

(  a x 1 - a x 1 ) : ( a x 1883 + 543 )

= ( a - a ) : ( a x 1883 + 543 )

= 0 : a x 1883 + 543

= 0 x 1883 +  543

= 0 + 543

= 543.

Answer 2

\(\left(a\times1-a:1\right):\left(a\times1883+543\right)\\ =\left(a-a\right):\left(a\times1883+543\right)\\ =0:\left(a\times1883+543\right)\\ =0\)