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Rufina [12.5K]
3 years ago
6

Solve the inequality -7x >21. What is the graph of the solution

Mathematics
2 answers:
Anni [7]3 years ago
5 0

Answer:

-3 > x

Explanation:

-7x > 21

___ ___

-7 -7

x < -3

Now, whenever we <em>divide</em> or <em>multiply</em> by a negative, we reverse the inequality symbol.

In order to graph this, you do what I call the zero-interval test, which in this case, we plug in 0 for x, and determining whether the statement is false or true, determines which side we shade:

0 < -3 [Since this is a false statement, instead of shading to the <em>right</em>, we shade to the <em>left</em>.]

I am joyous to assist you anytime.

umka21 [38]3 years ago
3 0

Answer:

After solving the inequality -7x >21 the answer is x < -3

Step-by-step explanation:

Solve the inequality -7x >21. What is the graph of the solution

Solving:

-7x > 21

Multiply both sides by -1

The inequality sign is reversed

7x < - 21

Now divide both sides by 7

7x / 7 < -21/7

x < -3

The graph is attached in the figure below.

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