* x = 2x + 7? If so, subtract 2x from both sides to get -x = 7, then multiply by -1 to get x = -7.
* x * 2x = 7? If so, this simplifies to 2x² = 7. Then x² = 7/2, and x = ±√(7/2) or approximately ±1.87
Please clarify the equation.