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Hunter-Best [27]
3 years ago
14

6. Which expression is equivalent to -21 + 28x? *

Mathematics
1 answer:
ollegr [7]3 years ago
7 0

Answer:

21/28

Step-by-step explanation:

Are there any answer choices?

-21 + 28x = 0

28x = 21

Divide by 28

x = 21/28

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Help please will mark best answer
77julia77 [94]
I figured out the first question, the second one in lost on.

\frac{(6-x)}{x^2+3x-28} / \frac{x^2-36}{x^2+5x-36}

Factor both of the equations, numerator and denominator

\frac{(6-x)}{(x+7)(x-4)}*  \frac{(x+6)(x-6)}{(x+9)(x-4)}

Cancel the like factors *excuse the zero im just showing you*

\frac{(0)}{(x+7)} *\frac{(x+6)}{(x-9)}

Combine frunctions

\frac{(6+x)}{(x-9)(x+7)}

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Restrictions are 9 and -7
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4 years ago
Question 1<br> How do metal atoms bond together?
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Step-by-step explanation:

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How to round to the naerst 10?
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6,234,570.0
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