Question: ned took a test with 25 questions. he lost 4 points for each of the 6 questions he got wrong and earned an additional 10 points for answering a bonus question correctly. how many points did ned receive or lose overall?

my thoughts: 6(-4)+10=-14; lost 14 points

what i'm confused on: i need a confirmation for my thoughts first. i need to you to break down the question for me. lastly, i want to understand why the number of questions he did get correctly doesn't play a role in the math problem.