Find the value of x , 5x =625 , also find 3x and 2x-1
Mathematics · College · Mon Jan 18 2021
Answered on
Given:
5x = 625
3x
2x - 1
Find the value of x.
Solution:
In order to find the value of x, for the first equation, we divide both equations by 5, in order to cancel out 5x/5
5x/5 = 625/5
x = 125
For the second given, we equate 3x to 0, then divide both sides by 3 to cancel out 3x.
3x = 0
3x/3 = 0/3
x = 0
For the third given, we simply transpose -1 on the other side of the equation, hence we must take note that in transposing a number, the sign changes. After transposing the number, we simply divide both sides by 2 to cancel out 2x.
2x - 1 = 0
2x = 1
2x/2 = ½
x = ½
Final answer:
x = 125
x = 0
x = ½