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a) 1/3x - 1 = 2 * (1/3x + 1/5)
1/3x - 1 = 2/3x + 2/5
5x - 15 = 10x + 6
5x - 10x = 6 + 15
-5x = 21
x = -21/5
Comprobación:
a) 1/3 (-21/5) - 1 = 2 * (1/3 (-21/5) + 1/5)
-12/5 = -12/5
Solución b):
b) x - 1/2 + 1 = 1/5x
x + 1/2 = 1/5x
10x + 5 = 2x
10x - 2x = -5
8x = -5
x = - 5/8
Comprobación:
b) (- 5/8) - 1/2 + 1 = 1/5 (- 5/8)
- 1/8 = - 1/8