Răspuns:
{[(101-63:a)x9-2]:5+27}x4-12=800
{[(101-63:a)x9-2]:5+27}x4=800+12=812
{[(101-63:a)x9-2]:5+27}=812:4=203
{[(101-63:a)x9-2]:5=203-27=176
(101-63:a)x9-2=176x5=880
(101-63:a)x9=880+2=882
101-63:a=882:9=98
63:a=98+101=199
a=199x63=12,537
Explicație pas cu pas:`
