how do i know whether to subtract or divide when isolating a number? (example, 2a, do i subtract or divide?)
2 answers:
Answer:
Example 2a should be divided
When the variable is attached like 2a you divide to isolate. When it is 2+a you subtract 2 to the other side and when it’s -2+a you add to the other side!
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Answer:
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Step-by-step explanation:
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Combine like terms
Factor out a^2
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Answer:
-18
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Answer:
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