alleryWhen variables and numbers appear on both sides, you must simplify:
ABoth signs
BBoth steps
CBoth sums
DBoth sides
Answer & Solution
Correct answer: D. Both sides
1. Each side may hold terms to combine.
2. Neither can be left untidy.
3. So you simplify both sides before isolating.
_Source: OpenStax Elementary Algebra 2e, Chapter 2, Solving Linear Equations and Inequalities._
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