Answer:
x=10, x=-10
Step-by-step explanation:
8|x| + 6 = 86
8|x| = 86 - 6
8|x| = 80
|x| = 80/8
|x| = 10
∴ x=10, x=-10
Remember that the absolute symbol turns all number inside of it positive, so |-10| = 10 and |10|=10 too.
For 5a+5b+5c=-20
A= -4 - b - c
B= -4 - a - c
C= -4 - a - b
———————————
4a+3b+3c=-6
A= -3/2 - 3b/4 - 3c/4
B= -2 - 4a/3 - c
C= -2 - 4a/3 - b
———————————
-4a+3b+3c=9
A= -9/4 + 3b/4 + 3c/4
B= 3 + 4a/3 - c
C= 3 + 4a/3 - b
It would be 245% since you multiply by 100