4n+8=9n-7
4n + 8 = 9n-7
4n+8-8=9n-7-8
4n=9n-15
4n-9n=9n-9n-15
-5n=-15
-5n/-5=-15/-5
n=3
15 over 13 as a fraction or .8666666............
To solve the equation 4n + 8 = 9n - 7, we need to isolate the variable n on one side of the equation. Here's how you can do it step by step:
Step 1: Start by simplifying both sides of the equation. Combine like terms by subtracting 4n from both sides:
8 = 5n - 7.
Step 2: Next, isolate the variable term by adding 7 to both sides:
8 + 7 = 5n - 7 + 7.
This simplifies to:
15 = 5n.
Step 3: Finally, divide both sides by 5 to solve for n:
15/5 = 5n/5.
This gives us:
3 = n.
So, the solution to the equation 4n + 8 = 9n - 7 is n = 3.