## Thinking Mathematically (6th Edition)

The statement is false. A corrected statement that is always true is: $2\cdot a + 5 = a \cdot 2+5$
The statement is false. Simplifying both sides gives us the statement: $2a+5=5a+2$ This is a conditional statement which is true only when $a=1$. A corrected statement that is true for all values of $a$ would be: $2\cdot a + 5 = a \cdot 2+5$