If AD = 3x + 3 and CD = x + 9, what is the value of x?
Mathematics · High School · Wed Jan 13 2021
Answered on
Given:
AD = 3x + 3 and CD = x + 9
Determine the value of x.
Solution:
In order to determine the value of x, we equate the given equations into one single solution.
AD = CD
3x + 3 = x + 9
Transpose x and 3 to the opposite sides of the equation, hence it must be taken to note that in transposing a number, the sign changes.
3x - x = 9 - 3
2x = 6
Divide both sides by 2x in order to determine the value of x.
2x/2 = 6/2
x = 3
Final answer:
x = 3