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Duta05
a fost răspuns

Aflati x din egalitatea:{4ori[(3+x):9+7]-30}ori2-12=1768

Răspuns :

Renatemambouko
{4*[(3+x):9+7]-30}*2-12=1768
{4*[(3+x):9+7]-30}*2=1768+12
{4*[(3+x):9+7]-30}*2=1780
{4*[(3+x):9+7]-30}=1780 :2
4*[(3+x):9+7]-30=890
4*[(3+x):9+7]=890+30
4*[(3+x):9+7]=920
(3+x):9+7=920:4
(3+x):9+7=230
(3+x):9=230-7
(3+x):9=223
3+x=2007
x=2004




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