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3(y + 4) + 6 = 5(y + 6)
3y + 12 + 6 = 5y + 30
3y + 18 = 5y + 30
18 - 30 = 5y - 3y
- 12 = 2y
-12/2 = y
- 6 = y
Respuesta.
y = - 6
3y+12+6=5y+30
3y - 5y = 30 -12-6
- 2y= 12
y= -6