-3r + 7 - 3r - 12 in simplest form
since the co-efficient or "r" is "-3" and "-3", it will simplify to "-6" as -3-3= -6.then the two constant terms with are "7" and "-12" will simplify to "-5" as 7-12=-5. therefore, the simplest form is -6r -5hope it helped!
