Solve for x: 4 x + 1 = 2 x + 12

The best way to answer these kind of questions is by moving all the unknowns to one side. In this case, the only unknown is x, so we should start by moving all the x's to one side. Since there are 4x's on the left hand side but only 2 on the right hand side, we can eliminate 2 x's. This leaves: 2x + 1 = 12.

The next step is to subtract 1 from each side so we are left with just x's on one side and just numbers on the other. This leaves: 2x = 11. And finally we divide by 2 to leave a single x, so x = 5.5