Answer :
[tex]22-4x=12x+126\ \ \ \ |Subtract\ 12x\\\\
22-16x=126\ \ \ |Subtract\ 22\\\\
-16x=104\ \ \ |Divide\ by\ -16\\\\
x=-6,5\\\\Solution\ is\ x=-6,5.[/tex]
22 - 4x = 12x + 126
+4x = +4x
22 = 16x + 126
-126 = - 126
-104 = 16x
/16 /16
-6.5 = x
+4x = +4x
22 = 16x + 126
-126 = - 126
-104 = 16x
/16 /16
-6.5 = x