Is that the Algebra work/practice book? If so, go into algebra nation and they have videos where they go step by step through the questions. Hope this helps?
By order of operation
5+1x10
5+10
15
By normal solving
5+1x10
6x10
60
I think it is B (don't take me for certain cuz I don't know)
Answer:
its b. AC=DF
btw where is the problem came from?
Answer

Step-by-step explanation:
