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4x + 1 = 3x + 5
4x - 3x = 5 - 1
x = 4
Solución :
x = 4
--------------------------
5 + 4 - 2x + 3 = 4 + 4x
12 - 2x = 4 + 4x
- 2x - 4x = 4 - 12
- 6x = - 8
x = -8/-6---simplificamos la mitad
x = 4/3
Solución :
x = 4/3