15+15+15=45 Hope this helps.
Answer:
i need more info
Step-by-step explanation:
It's the second one hope this helped
Answer:
10x+13
Step-by-step explanation:
(10x+30) -17+0
30-17=13+0=13
10x+13
this would be the most simplified for this question, because 13 and 10 do not both have x's and that means you cant add them. so this is the most simplified answer.