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a fost răspuns

{[(107-63:x)X9-2]:5+3X9}X4-12=800

Răspuns :

{[(107-63:x)*9-2]:5+27}*4=800+12
{[(107-63:x)*9-2]:5+27}=812:4
[(107-63:x)*9-2]:5=203-27
[(107-63:x)*9-2]=176 x5
(107-63:x)*9=880+2
107-63:x=882:9
63:x=107-98
x=63:9
x=7






Mirceaberchi
{[(107-63:x)*9-2]:5+27}*4=800+12
{[(107-63:x)*9-2]:5+27}=812:4
[(107-63:x)*9-2]:5=203-27
[(107-63:x)*9-2]=176 x5
(107-63:x)*9=880+2
107-63:x=882:9
63:x=107-98
x=63:9
x=7
Sper ca te-am ajutat!!! :) 

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