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kirill115 [55]
3 years ago
9

How do you Simplify this expression5(x+1)-5x

Mathematics
2 answers:
Mariana [72]3 years ago
6 0

Answer:

5

Step-by-step explanation:

Begin by removing the brackets.

5x + 5 - 5x

Notice that there are two 5xs. They are of opposite signs so they cancel

Answer 5

Vaselesa [24]3 years ago
5 0

Answer:

<u>5</u>

Step-by-step explanation:

5(x+1) -5x

multiply the 5 into the ()

5x+5 -5x

add like terms

5x-5x=0

but their is still the leftover <u>5</u>

Sorry if this is confusing.

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Which of the following is a prime number? 61 39 27 76
Zolol [24]
61 is the prime number.

39 is divisible by 3 and 13.
27 is divisible by 9 and 3.
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oksian1 [2.3K]

Given :-

  • a² - 2a - b² = 0
  • 2b + 2ab = 0

To find :-

  • Value of a and b .

Solution :-

<u>Taking</u><u> </u><u>second</u><u> </u><u>equation</u><u>:</u><u>-</u>

  • 2b + 2ab = 0
  • 2b ( 1 + a ) = 0
  • 2b = 0 or (1+a) = 0
  • b = 0 , a = -1

<u>Substitute</u><u> </u><u>in </u><u>first </u><u>equation</u><u> </u><u>:</u><u>-</u><u> </u>

  • a² - 2a - b² = 0

<u>When </u><u>b </u><u>=</u><u> </u><u>0</u><u> </u><u>,</u>

  • a² - 2a - 0² = 0
  • a² - a = 0
  • a( a -1) =0
  • a = 0 , 1

<u>When </u><u>a </u><u>=</u><u> </u><u>-</u><u>1</u><u> </u><u>,</u>

  • (-1)² - 2*(-1) - b² = 0
  • 1 + 2 - b² = 0
  • b² = 3
  • b = ±√3

<u>Answer </u><u>:</u><u>-</u><u> </u>

  • a = 0,1 ; b = 0
  • a = -1 , b = ±√3
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Answer:

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Step-by-step explanation:

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Answer: 5%

Step-by-step explanation:

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