$$2x+3 = 2x+7$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} 2x+3 &= 2x+7&& \text{move the $ \color{blue}{ 2x } $ to the left side and $ \color{blue}{ 3 }$ to the right} \\[1 em]2x-2x &= 7-3&& \text{simplify left and right hand side} \\[1 em]2x-2x &= 4&& \\[1 em]0 &= 4&& \\[1 em] \end{aligned} $$
Since the statement $ \color{red}{ 0 = 4 } $ is FALSE, we conclude that the equation has no solution.
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