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sdas [7]
3 years ago
11

Solve using the distributed property -4(2x-5)=4

Mathematics
2 answers:
finlep [7]3 years ago
8 0
-4(2x-5)=4

-8x+20=4

-8x=4-20

-8x/-8= -16/-8

x=2
Scorpion4ik [409]3 years ago
7 0
First you multiply -4 times 2x=-8x.
Then you multiply -4 and -5=20
so -8x+20=4
You subtract 20 on outside of the equal sign.(Because if you do something on one side of the equal sign you have to do it to the other side.)
-8x=-16
then you divide -8 on both sides of the equal sign 
x=2
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Type the correct answer in each box. Use numerals instead of words.
N76 [4]

The simplification of the polynomial expression will give 3x² - 20x + 8.

<h3>How to illustrate the polynomial?</h3>

The polynomial expression is given as:

(5x² + 13x4) (17x² + 7x - 19) + (5x-7)(3x + 1)

= 5x² + 13x - 4 - 17x² - 7x + 19 + 15x² + 5x - 21x - 7

Then collect like terms

= 5x² + 15x² - 17x² + (13x - 7x + 5x - 21x) - 4 - 7 + 19

= 3x² - 20x + 8.

Learn more about polynomial on:

brainly.com/question/2833285

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3 0
2 years ago
Fifteen years later, a man will be two times as old as he was 15 years ago. How old is he now?
Inga [223]

Answer:

Let the present age of the man be x years.

Age of the man 15 years ago =(x−15) years and

Age of the man 15 years later =(x+15) years

According to the given condition, we have

(x+15)=2(x−15)

⇒x+15=2x−30

⇒x−2x=−30−15

⇒−x=−45 or x=45 years

Hence, the present age of the man is 45 years.

Step-by-step explanation:

Hope it helps you..

Your welcome in advance..

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6 0
3 years ago
Read 2 more answers
(Please help ill give brainliest)
elena-s [515]

Answer:

80 answer is 80

Step-by-step explanation:

50+30 = 80 answer

6 0
2 years ago
The point (-3, 4) is on the line x+4y=13.
lys-0071 [83]

Answer:

yes

Step-by-step explanation:

To determine if the point lies on the line substitute the coordinates into the left side of the equation and if equal to the right side then the point lies on the line

- 3 + (4 × 4) = - 3 + 16 = 13 = right side

Hence (- 3, 4) lies on the line x + 4y = 13

5 0
3 years ago
Evaluate the expression.<br>(21÷7) +6 + 3³​
spin [16.1K]
Answer: 36.
Solve in order of PEMDAS - parentheses, exponents, multiplication, division, addition and subtraction. 21/7= 3. 3^3 is 3*3*3=27. 3+ 6 + 27= 36.
8 0
3 years ago
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