2n + 8 - n = 20

2n + 8 - n = 20

Solve for n in the equation 2n + 8 - n = 20

Step 1: Group the n terms on the left hand side:
(2 - 1)n = n

Step 2: Form modified equation
n + 8 = + 20

Step 3: Group constants:
We need to group our constants 8 and 20. To do that, we subtract 8 from both sides
n + 8 - 8 = 20 - 8

Step 4: Cancel 8 on the left side:
n = 12