Verified answer

Step-by-step explanation:

(x+3)(x+1) = (x-2)(x+11)

[tex] {x}^{2} +x + 3x + 3 = {x}^{2} + 11x - 2x - 22[/tex]

[tex] {x}^{2} + 4x + 3 = {x}^{2} + 9x - 22[/tex]

[tex]4x + 3 = 9x - 22[/tex]

[tex]3 + 22 = 9x - 4x[/tex]

[tex]25 = 5x[/tex]

[tex]x = 25 \div 5[/tex]

[tex]x = 5[/tex]