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ioda
3 years ago
11

How do you solve the equation -7/8k=21

Mathematics
1 answer:
IRINA_888 [86]3 years ago
7 0
- \frac{7}{8} k=21\\\\k=21\times-  \frac{8}{7} \\\\k=-3\times 8\\\\\boxed {k=-24}
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How to find a least common demoniator
katrin [286]
To find the LCD first convert all integers and mixed numbers (mixed fractions) into fractions. Then find the least common multiple ( LCM ) of the denominators which is equal to the least common denominator ( LCD ). You can then rewrite each term as an equivalent fraction with the LCD .
3 0
3 years ago
Please help I give brainliest​
Vika [28.1K]

Hope this helps u out :D

Answer:

The GCF is 3w

Step-by-step explanation:

You have to find the GCF of

6w^3, 3w^2, 9w

You can start with 3. Then get:

6w^3/3 = 2w^3

3w^2/3 = w^2

9w/3 = 3w

The following factor is w. It has to have an exponent of one, as it the smallest exponent present in the 3 numbers:

2w^3/w = 2w

w^2/w = w

3w/w = 3

Expression:

6w^3 - 3w^2 - 9w= 3w(2w^2 - w - 3)

The GCF is 3w.

4 0
3 years ago
Fine x when 2+6(4-3)=8
erastova [34]

I'm not sure you finished the question because there isn't an x there but I simplified it in case that's what you wanted

2 + 6 = 8

4 - 3 = 1

8(1) = 8

8 = 8

8 0
3 years ago
Read 2 more answers
Please help me. please help me​
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The answer is 38.1.078125
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