14 is your answer
Explanation:
If he has 16 now because he bought 9. You would do 16 - 9 which equals 7. And if he sold half of his coins that means he has 14.
14-7=7
(Answer is 14)
Add 2 to both sides.
d=16
Answer:
50
Step-by-step explanation:
Hi there!
a. 8x^2 - 1
(x^2 - 4x + 5) + (7x^2 + 4x - 6)
= x^2 + 7x^2 - 4x + 4x - 1
= 8x^2 - 1
b. 5x^2 + 7x - 7
(7x^2 + 4x - 6) - (2x^2 - 3x + 1)
= 7x^2 + 4x - 6 - 2x^2 + 3x - 1
= 7x^2 - 2x^2 + 4x + 3x - 6 - 1
= 5x^2 + 7x -7
Hope this helps!
Answer:
it is a :) hope this helped :)
Step-by-step explanation:
