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What is the value of x?

 

 Mar 22, 2021
 #1
avatar+121003 
+1

We  have  that

 

(x + 1)  ( x + 1 + 14)   x ( x + 21)    simplify

 

(x + 1) ( x + 15)  =  x^2 + 21x

 

x^2  + 16x  + 15  = x^2 + 21x        subtract x^2 from both sides

 

16x + 15  =  21x

 

15  + 16x - 21x  = 0

 

15 - 5x   =  0

 

15  = 5x

 

x =  3       you are correct  !!!

 

 

cool cool cool

 Mar 22, 2021

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