1. The problem asks why in step 1 you add 2 and also multiply by 2. 2. Addition means you are increasing the value by 2. 3. Multiplying by 2 means you are doubling the value. 4. Both operations affect the number but in different ways: addition shifts the number line, multiplication scales. 5. For example, starting with $x$, adding 2 gives $x+2$, multiplying by 2 gives $2x$. 6. If you do both, like $2(x+2)$, first add 2, then multiply the entire quantity by 2, giving $2x+4$. 7. This sequence follows order of operations and changes linear expressions appropriately. 8. Typically, you add inside parentheses first, then multiply outside to distribute correctly. 9. This explains why both adding 2 and multiplying by 2 appear together in such expressions.