X + 14 + x + 14 = 17 + x + 7
2x + 28 = 24 + x
2x - x = 24 - 28
x = -4
DF = x + 14
= (-4) + 14
= 10
Answer:
All you have to do is to the distributive method.
Step-by-step explanation:
(7x+14)(9x-8)
-6 x -6 x -6 = -216
-6 + -6 + -6 = -18
So the answer is negative 6