Hello!
Since D is the midpoint and the two equations are and both sides of point D the equations equal each other
9x - 7 = 3x + 17
Now you solve it algebraically
Add 7 to both sides
9x = 3x + 24
Subtract 3x from both sides
6x = 24
Divide both sides by 6
x = 4
Now we put this into both equations and add them
9(4) - 7 = 29
3(4) + 17 = 29
29 + 29 = 58
The answer is 58 units
Hope this helps!
Answer:
psychological test
Step-by-step explanation:
Psychological test, also known as psychological assessments is a technique used by researchers to determine psychological construct of individuals from questionnaire.
Psychological areas which the test access individuals introversion and extroversion traits, intelligence, interests, specific abilities, attitudes as well as certain conditions such as depression and anxiety
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Minus x from both sides
3x-6-x=x-x
2x-6 =0
plus 6 on both sides
2x-6+6=0+6
2x = 6
divide both sides by 2
2x/2 =6/2
x = 3