Decreased levels of the neurotransmitters norepinephrine and serotonin may cause
a. anxiety.
b. phobic behavior.
c. euphoria and excitement.
d. depression.

d. depression.

Explanation:

Research in Neuroscience points out that population showing depression lacks neurontrasmitters levels like serotonin and norepinephrine;presenting lower levels and so the imbalance of key hormones is suggesting this contributes to feelings of depression

In the last 50 years biological theraphy tries to remedy this by drug prescriptions that will stimulate hormones reabsrobtion

With low levels of serotonin have been often comes along with poor memory,low mood, difficult to sleep, low self-esteem,

Some recreational drugs function as they increase serotonin. Of course cognitive, medical or other therapies will be recommended

x = -6.5

explanation:

with this editor, you should be careful to put what you mean. 5/(2x - 7) = 3/(4x +14) is the way i will interpret it. cross multiply

5*(4x + 14) = 3*(2x - 7)       remove the brackets

20x + 70 = 6x - 21             add 21 to both sides

20x+ 70+21= 6x                 combine

20x + 91 = 6x                     subtract 20x

20x-20x+91=6x-20x           combine

91 = - 14x

x = - 91/14

x = - 6.5

maybe

only if le monke lets me