Answer:
[tex]4( x + 2) = 20 \\ 4x + 8 = 20 \\ \: - 8 \: - 8 \\ 4x = 12 \\ x = 3[/tex]
[tex] \implies 4(x + 2) = 20 \\ \\ \implies4x + 8 = 20 \\ \\ \implies4x = 20 - 8 \\ \\ \implies4x = 12 \\ \\ \implies x = \frac{12}{4} \\ \\ \boxed{\implies x = 3}[/tex]
