A word problem is expressed as 3(2n+1)=2(2n+3)+5.
This implies 6n+3=4n+6+5. The next step given as the solution eludes me as to how they came up with it. How does that turn into 2n=8 (and thus n=4)? I would appreciate an explanation here. Thank you!
3(2n + 1) = 2(2n + 3) + 5
6n + 3 = 4n + 6 + 5 <==== This is where you are
6n + 3 = 4n + 11 -------- COMBINING like-terms + 6 and + 5 on right side
- 4n - 4n ------------- Subtracting 4n from both sides in order to MOVE 4n to left side of equals sign, and subsequently ISOLATE n
2n + 3 = 11
- 3 - 3 ------------- Subtracting 3 from both sides in order to MOVE 3 to right side of equals sign
2n = 8