Answer:
the cost of each book = $24
Step-by-step explanation:
(if all the books have the same price)
Let x be the price of one book
“She had $157 and After buying 6 books ,she was left with 13$“ means
“157 = 6x + 13”
now we have an equation to solve :
157 = 6x + 13
⇔ 157 - 13 = 6x
⇔ 144 = 6x
⇔ 24 = x
Answer:
6
Step-by-step explanation:
One of the groups had 4, so subtract that from the 16 total and it leaves 12. Then the 12 are split into 2 groups so they each have 6.
Answer:
-6
Step-by-step explanation:
→ Remove the brackets
-1 - 5
→ Simplify
-6