Answer :
Before multiplying both sides of the equation by 1/3, first move the -1 over to the right side with a plus, so we get 3x = 9. Then multiply by 1/3 and you get x = 4
Answer:for solving equations your trying to get the x by itself so multiplying 1/3 on both sides doesn't eliminate 1 so that you can have 3x by itself
Step-by-step explanation:hope that helps