Odpowiedź:
[tex]Ob = 41cm\\a = 2x+3\\b = x\\c = x+1\\Ob = a + b + c\\41 = 2x+3 + x + x + 1\\41 = 4x + 4 /-4\\37 = 4x /:4\\\\\frac{37}{4} = x\\\\x = 9 \frac{1}{4} = 9,25cm\\2x + 3 = 2*9,25+4= 22,5cm\\x + 1 = 9,25+1 = 10,25cm[/tex]
Szczegółowe wyjaśnienie:
