Respuesta :
4 ( x + 9) = x + 9 (remove the parantheses)
4x + 36 = x + 9 (move the terms)
4x - x = 9 - 36 (collect like terms and calculate)
3x = -27 (divide both sides)
solution : x = -9
4 ( x + 9) = x + 9 (remove the parantheses)
4x + 36 = x + 9 (move the terms)
4x - x = 9 - 36 (collect like terms and calculate)
3x = -27 (divide both sides)
solution : x = -9