Question

(x+6)(x+3)=x(x+8)-3 son ecuaciones

Answer 1

$(x + 6)(x+ 3) = (x+ 8) - 3 \\ { x }^{2} + 3x + 6x + 18 = {x}^{2} + 8x - 3 \\ 3x + 6x + 18 = 8x - 3 \\ 9x + 18 = 8x - 3 \\ x = - 21$