We want to find the coeficient of the y terms when added together so find all the y terms
+12y and +2y we add them together 12y+2y=(12+2)y=(14)y=14y coeficient is 14
the constant is the number that is set already or the number that doesn't have it multiplied by a placeholder exg. 4 is a constnat but 4x is not so find the constants +5 and +8 we add 5+8=13 the constant is 13