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storchak [24]
2 years ago
12

How do you get why by itself in this equation? 4x+5y=5

Mathematics
1 answer:
Alja [10]2 years ago
6 0

Answer:

first we get y on one side by itself.

4x+5y=5

we'll move x to the other side.

4x-4x+5y=5-4x

simplify.

5y=5-4x

now we get rid of the coefficient on y.

5y/5=(5-4x)/5

simplify.

y=5/5-4x/5

y=1- \frac{4}{5}x

The answer is y=1-\frac{4}{5}x

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Answer:

<u>There are 10 multiple-choice questions and 15 short-answer questions in the test</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

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2. How  many multiple-choice questions are there?

Let's solve this problem, this way:

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s = Short-answer questions

Our equations system is:

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Substituting s in the 1st equation and solving for m:

m = 25 - 15

<u>m = 10 </u>

<u>There are 10 multiple-choice questions and 15 short-answer questions in the test</u>

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