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lbvjy [14]
3 years ago
15

Solve for x in the equation 3x2-18x+5=47

Mathematics
1 answer:
Rudiy273 years ago
5 0

(3 times 2)-18x+5=47

6-18x+5=47    

6-18x=42    subtract 5 from both sides

-18x=36      subtract 6 from both sides

x=negative 2  Divide by your X

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How do you solve -2/3x + 5 = 20 - x
Monica [59]

-2/3x + 5 = 20 - x

subtract 5 from each side

-2/3 x = 15 -x

add x to each side

-2/3 x +x = 15

get a common denominator of 3 for the x terms

-2/3x + 3/3 x =15

combine like terms

1/3 x = 15

multiply by 3 on each side

x = 45

Answer: x=45

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Answer:

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Step-by-step explanation:

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MrRa [10]

Answer:

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Step-by-step explanation:

To add two fractions we need a common denominator. Just by looking at the two, there are no common factors. This means the denominator would be the product of the two: 4x(x-8). In order to obtain this, we multiply the first fraction by (x-8)/(x-8) - 1, and the second by 4x/4x - 1:

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We can use the distributive property to simplify:

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The sum of the two is:

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7 0
3 years ago
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Step-by-step explanation:

100% = 4.25

1% = 100%/100 = 4.25/100 = 0.0425

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we find this by calculating how often 1% (0.0425) fits into 3.4.

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Alekssandra [29.7K]
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3 years ago
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