The correct answer is Choice D.
Solve the given equation to determine the number of solutions.
Alternatively,
Consider each side of the equation as a linear equation and evaluate how many intersects the two equations have.
Choices A, B, and C are incorrect because the given equation has infinite number of solutions.
✨ Expert's Tip ✨
The two linear equations have no solutions if they are only parallel: $m_1=m_2$ but $b_1≠b_2$.