Al 1º Al 2º Al 3º Total
x x x
----- + ----- + 8 + -------- = x
2 4 5
10x + 5x + 160 + 4x
----------------------------- = x
20
10x + 5x + 160 + 4x = 20x
160 = 20x -10x -5x -4x
160 = x x = 160€
Al primero
X 160
---- = ------ = 80€
2 2
Al segundo
---- + 8 = ------- = 40 + 8 = 48€
4 4
Al tercero
--- = ------- = 32€
5 5
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Al 1º Al 2º Al 3º Total
x x x
----- + ----- + 8 + -------- = x
2 4 5
10x + 5x + 160 + 4x
----------------------------- = x
20
10x + 5x + 160 + 4x = 20x
160 = 20x -10x -5x -4x
160 = x x = 160€
Al primero
X 160
---- = ------ = 80€
2 2
Al segundo
X 160
---- + 8 = ------- = 40 + 8 = 48€
4 4
Al tercero
X 160
--- = ------- = 32€
5 5