Combine like terms and simplify expressions while preserving structure.
Check which simplified forms are truly equivalent
Problem
Combine like terms in \(4x~+~3~-~2x~+~5\). Report a fully simplified equivalent expression.
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What this problem is really about
Group the two x-terms with their signs and combine the constants in a separate group. After simplifying both, check the stronger requirement that the form is fully simplified: no like terms should remain and no redundant zero term should be attached. The variable term and constant can then remain side by side as unlike terms.
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