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25 votes
Question 1
17 ≥ 2y; y = 7
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5 pts
Is y = 7 a solution?

1 Answer

6 votes

Answer: Yes it is a solution

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Reason:

Let's replace y with 7 and simplify as much as possible.

17 ≥ 2y

17 ≥ 2*7

17 ≥ 14

We get a true statement, which confirms that y = 7 is indeed a solution.

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Another approach:

Let's isolate y. We divide both sides by 2

17 ≥ 2y

17/2 ≥ 2y/2

8.5 ≥ y

y ≤ 8.5

Anything that is 8.5 or smaller can replace y to be a solution.

That fits for y = 7, so this is another way to see how y = 7 is a solution.

Side note: The graph on the number line will have a closed fill in circle at 8.5 and shading to the left.

User Mathiasbn
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