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a fost răspuns

261:3-[45*7+29*a-(146:2+3*111)]+67=100

Răspuns :

Munmnc
87-[315+29*a-(73+333]=100-67
87-(315+29*a-406)=33
315+29*a-406=87-33
315+29*a-406=54
29*a=54+406-315
29*a=145
a=5

NiceShotVi
[tex]261:3-[45*7+29*a-(146:2+3*111)]+67=100\\ 87 - [315 + 29a - (73 + 333)] + 67 = 100\\ 87 - (315 + 29a - 406) = 33\\ 87 - 315 - 29a + 406 = 33 \\493=348+29a =\ \textgreater \ a = 5[/tex]

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