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~ de ...14... =4
7
2
~ de ...900.... =600
3
4
~ de ...351... =156
9
2
--- de X = 4
7
2x = 4*7 28 2
2x = 28 x = ------- 14 ⇒ ------ de 14 = 4
2 7
-----------------------------------------------------------------------------
2
--- de X = 600
3
2x = 3 * 600 1800 2
2x = 1800 x = -------- = 900 ⇒ ------- de 900 = 600
2 3
-------------------------------------------------------------------------------------
4
--- de X = 156
9
4x = 9 * 156 1404 4
4x = 1404 x = ---------- = 351 ⇒ -------- de 351 = 156
4 9