+53 Firstly use the distributive property on the first, complex term. We get -15x-21-6x. Then we would combine our like terms, hence, it would simplify to: -21x-21
+53 Firstly use the distributive property on the first, complex term. We get -15x-21-6x. Then we would combine our like terms, hence, it would simplify to: -21x-21
