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3 years ago

S+2m=20 s-5=m substitution

Mathematics

1 answer:

xxTIMURxx [149]3 years ago

7 0

Answer:

s = 10

Step-by-step explanation:

s + 2(s - 5) = 20

s + 2s - 10 = 20

s + 2s - 10 + 10 = 20 + 10

s + 2s = 30

3s = 30

3s/3 = 30/3

s = 10

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3 years ago

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jenyasd209 [6]

The interval on the number line is (-∞, 2) U [3, ∞)

<h3>How to determine the interval?</h3>

From the number line, we have the following inequalities

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While ≤ and ≥ are represented by square brackets i.e. [ and ]

So, we have:

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So, we have:

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Read more about interval notation at:

brainly.com/question/13048073

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2 years ago

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sergeinik [125]

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3 years ago

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sergey [27]

I'm guessing you mean:
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