7-9x<12

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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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You can solve an inequality the same way you solve an equation with one difference. When you multiply or divide both sides by a negative number, the inequality sign changes direction.
You want to isolate x. That means you need to get rid of the 7 from the left side first. Step 1. Subtract 7 from both sides. What do you get?
-9x<5

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Other answers:

Great. Remember, we're trying to isolate x. Now I see that x is being multiplied by -9. We need x alone, so we need to divide both sides by -9. Remember the rule above that the inequality sign must flip when you multiply or divide by a negative number.
Great, thank you!
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You're welcome.

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