You understand the concept, but your answer is wrong. You check the solution and see a 'silly mistake.' Here's why and how to fix it.

It's not about intelligence. It's about attention and process.

Reason 1: You're Moving Too Fast. Speed is the #1 cause of silly mistakes. Slow down. Accuracy is more important than speed.

Reason 2: Sloppy Handwriting. Your '5' looks like an 'S', your '+' looks like a 't'. Write with deliberate clarity.

Reason 3: The Dreaded Dropped Negative. This is the most common silly mistake. From now on, whenever you see a negative sign, circle it.

Reason 4: Distribution Errors. You forget to multiply a term by EVERYTHING inside the parentheses. Draw arrows to force yourself to do it.

Reason 5: Mental Math Errors. You try to do too many steps in your head at once. Your paper is your friend. Write down every single step.

The solution is to create a 'Process Checklist.'

After every problem, go through your checklist: 'Did I check for negative signs? Did I distribute correctly? Is my handwriting clear?'

These are not 'silly mistakes.' They are process errors. And a process can be fixed. Be disciplined, be neat, and slow down.