First you have to solve the one in the question and if the others match the answer then they are equivalent. Use socratic it will give instant answers for equations and for reading use brainly cuz it’s flashcards and math use brainly bc its 3-5 million questions posted a day
the answer is C and E Explanation The equation in the question is 6n+18 3(2n)+3(3)+9 6n+9+9 6n+18 so C matches Then E 6n+(27-9)=6n+18 so it also matches
