Question

factorise x+12=12/x+1

Answer 1

(x+12)(x+1)  = 12 
x^2 + 13 x+ 12 = 12 

x^2 + 13x = 0
x(x+13) = 0

Answer 2

(x+12)(x+1)=12
X^2+x+12x+12=12
x^2+13x=0
x(x+13)=0
x=0
x+3=0;x=13