5x + 3(x - 1) = 10x - 2x - 3
Simplify.
5x + 3x - 3 = 10x - 2x - 3
Add like terms.
8x - 3 = 8x - 3
We're trying to get x to one side, and the integers to the other, so we simply move the numbers over. Remember, when doing so, we must change their signs.
Add 3 to both sides, as well as subtracting 8x from both sides.
8x - 8x = -3 + 3
Simplify.
0 = 0
So, all real numbers is the solution.
~Hope I helped!~
