7x - 2 = 6x - 2x
7x - 2 = 4x
- 2 = 4x - 7x
-2 = -3x
-2 / -3 = x
2/3 = x
step 1: put all numbers with an x attached on one side, and all the numerical numbers (without a variable) on the other
step 2: simplify, add all those that are the same (ex: 3x + 2x, 5+ 5)
step 3: divide
step 4: you have your x
hope this helps
