Answer:

Step-by-step explanation:
5/7x-4/7x=20-14-4
1/7x=2
x=14
Answer:
x = i√3, -i√3
Step-by-step explanation:
Simply take the root of both sides, then solve.
-3 + 3n = -6 - 6n. Expand the brackets
3n + 6n = -6 + 3. Collect like terms
9n = -3
n = -3/9 = -1/3
Axiom and postulates. They are considered to be self evident.
Answer:
6%
Step-by-step explanation:
$156/5 years = $31.20 per year
$31.20/$520 = .06
.06 x 100 = 6%