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I'm not sure how to start this

I'm not sure how to start this
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5 votes
I'm not sure how to start this

I'm not sure how to start this-example-1
User Max Kanter
by
8.5k points

1 Answer

3 votes
You could start by cubing each side of the equation.

That would give you 7r + 5 = -27

Could you handle it from there ?
User Felix Andersen
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8.0k points
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