How to solve problems like 3x+2=4x+5

You must add like terms. So the problem is 3x+2=4x=5.
1) Move 3x to the right along with 4x+5, the 3x will become negative because every time you switch places like that they change from + to - or vice versa.
2) Move 5 to the left where 2 is, now the 5 will become negative.
3) Add like terms and the answer should be x=-3 if you got -3=x that's fine juts flip it.
Hope this helps! :)

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.