Answer: n = 21
Step-by-step explanation: To solve for n in this equation, our first step is to simplify the left side by distributing the 3 through both terms inside the parentheses.
When we do that,
we get 3 times 8 which is 24 and 3 times -n which is -3n.
So we have 5n + 24 -3n = 66.
You can simplify the left side one step further
by combing 5n - 3n to get 2n.
So we have 2n + 24 = 66.
Our next step is to isolate the n term by subtracting 24 from both sides. On the left, 24 - 24 cancels and we're left with 2n. On the right, 66 - 24 simplifies to 42.
So now we have 2n = 42.
Now divide both sides by 2 and n = 21.
