If #a+b+c = -6# and #x+y=5#, what is #9y+9x-10a-10c-10b#?
1 Answer
Dec 10, 2017
105
Explanation:
If you multiply a + b + c = -6 by - 10 you get -10a -10b - 10c = 60
And you multiply x + y = 5 by 9 you get 9x + 9y = 45
add them together and you get 105
