Answer: x = 4
Explanation:
Okay, so you have -4 + 3x = 4 + x.
The first step is to cancel out the x variable on the right side by subtracting the variable from both sides, meaning the lone variable and the 3x.
This leaves you with the following equation: -4 + 2x = 4.
Next, you would add 4 on both sides, canceling out the -4, which now leaves you with 2x = 8.
Lastly, you just have to divide both sides by 2 to get the variable alone, which also would determine the value of x, which is 4.
Hope I helped! ^^
I love doing algebra, so hit me with questions and I'll gladly answer them for you.