In general, 23 more than a number is written as

In our case, x is 'twice a number'; thus,

Finally, the whole expression is

<h2>The answer is 2n+23</h2>
Answer:
-8r
Step-by-step explanation:
r- 9r
since there is an r in each term we can factor out an r
r (1-9)
r (-8)
-8r
Answer:
-2x+10
Step-by-step explanation: