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hammer [34]
2 years ago
11

3(2x − 5) = 6x + k , whats the value of k?

Mathematics
1 answer:
Alinara [238K]2 years ago
6 0

Answer:

k=-15

Step-by-step explanation:

3(2x-5)=6x+k

open the bracket by multiplying the contents of the bracket by +3

6x-15=6x+k

collect.like.terms(C.L.T)

6x-6x-k=+15

-k=+15 or

-k=15

switch the signs equal to sign(=)

k=-15

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2 years ago
For a given input value b, the function f outputs a value a to satisfy the following equation. 4a+7b=−52 Write a formula for ) f
Sergio [31]

Answer: Our required formula becomes :

a=f(b)=-13-\frac{7}{4}b

Step-by-step explanation:

Since we have given that

4a+7b=-52\\

We need to write a formula for f(b) in terms of b So, it becomes

4a=-52-7b\\\\a=\frac{-52-7b}{4}\\\\a=\frac{-52}{4}-\frac{7b}{4}\\\\a=-13-\frac{7b}{4}

Hence, our required formula becomes :

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5 0
3 years ago
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Step-by-step explanation:

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<em><u>Answer: x=-2 *The answer should be the negative sign.*</u></em>

Step-by-step explanation:

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add 60 both sides of an equation.

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Hope this helps!

Thanks!

Have a great day!

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Answer:

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Step-by-step explanation:

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