Question
$$x-23 = x-7$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} x-23 &= x-7&& \text{move the $ \color{blue}{ x } $ to the left side and $ \color{blue}{ -23 }$ to the right} \\[1 em]x-x &= -7+23&& \text{simplify left and right hand side} \\[1 em]x-x &= 16&& \\[1 em]0 &= 16&& \\[1 em] \end{aligned} $$
Since the statement $ \color{red}{ 0 = 16 } $ is FALSE, we conclude that the equation has no solution.
This page was created using
Equations Solver