Answer:
8
Step-by-step explanation:
x = 12
2(x - 8)
2(12 - 8)
2(4)
8
The percentage would be would be 550%
Answer:
Step-by-step explanation:
f(x) = -5x + 8(7 - x)......when f(x) = 160
160 = -5x + 8(7 - x)
160 = -5x + 56 - 8x
160 - 56 = -5x - 8x
104 = - 13x
-104/13 = x
-8 = x <====
Answer:
v does not exist
Step-by-step explanation:
5v+5=4+5v
there is no v
#4)
cross multiply
2(8x+10) = 4 * 5x
16x + 20 = 20x
4x = 20
x = 5