Answer:
9y + 9x - 10a - 10c - 10b = 105
Step-by-step explanation:
It is given that, a+ b + c = - 6 and x + y = 5
<u>To find the value of given expression</u>
Let the expression be 9y +9x - 10a-10c -10b
9y +9x - 10a -10c -10b = 9(y + x) - 10(a + c + b )
= 9(x + y) - 10(a + b + c)
= 9 * (5) - 10 * (-6)
= 45 + 60
= 105
Therefore 9y + 9x - 10a - 10c - 10b = 105