quanto e x/5 - 1 = x/2
( / e fraçao )
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x - 1 = x
--- ---
5 2
(x - 5) = x
-------- ---
5 2
2 (x - 5) = 5x
2x -10 = 5x
-3x = 10
x = -10/3
--- ---
5 2
(x - 5) = x
-------- ---
5 2
2 (x - 5) = 5x
2x -10 = 5x
-3x = 10
x = -10/3
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