If x = 12 is equation 5 (x + 4a)) - 5 = 1 / 2 (X-2)

If x = 12 is equation 5 (x + 4a)) - 5 = 1 / 2 (X-2)

x=12
5 (x + 4a)) - 5 = 1 / 2 (X-2)
5(12+4a)-5=3
60+20x=8
20x=-52
x=-13/5