Question 86988
Question:


3x – 7 = 2x + 8



Answer:



3x – 7 = 2x + 8


subtract 2x from both sides...



==> 3x - 2x - 7 = 2x - 2x + 8



==> x - 7 = 8



Add 7 on both sides.....



==> x - 7 + 7 = 8 + 7




==> x = 15



To check you solution, plugg the value of x, that is x = 15 in the given equation.....



3 * 15  – 7 = 2* 15 + 8



==> 45 - 7 = 30 + 8




==> 38 = 38


That is you have  got same value on both sides of the equal sign.


So your answer is correct.




Hope you found the explanation useful.



Warm Regards.



Prassena