REE Anon. You can’t solve this problem that way anyway on multiple levels! The left and right hand side are not equal as functions. You’re trying to find a point at which the two unequal functions take on the same value (that’s what solving an equation is), not find over what intervals they have the same area under their curves.
Ask yourself, can a number plus 19 be itself minus 7? Of course not. The equation is inconsistent—no solution.