Answer:
He sold 6 books.
Step-by-step explanation:
If he sold a combination of 15 toys and books then the equation to find how many books he sold is the total minus how many toys he sold. 15-9=6
He sold 6 books
Explanation:
15 minus 9 is 6.
the answer is in the image
-7
7.
step-by-step explanation:
the coefficient multiplies the variable.
it is -7.
The number in the middle
12f + 49g
12f -7g(-7)
