how do you solve this? it said to be sure to use the correct place value, and I kinda slept in class

I assume you want me to solve the equation, 2x + 3 = x - 4
In order to solve this you need to you have to move the terms and then collect the like terms to calculate.
2x + 3 = x - 4
2x -x = -4 - 3
X = -7
Hope this helped!