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creativ13 [48]
2 years ago
9

Select the action you would use to solve x-3= 12. Then select the property

Mathematics
1 answer:
Aleks04 [339]2 years ago
6 0

Answer:

Add 3 to both sides

Property: Addition property of equality

Step-by-step explanation:

Action: Add 3 to both sides.

⇒ x - 3 =               12

(cancel out)+ 3     + 3

------------------------ -----

     x    =        15  

The property used:

  • Addition property of equality.

→ equation is true and the same #is added to each side the resulting equation is true. for any #s a,b,c,if a=b then a+c=b+c.

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8 0
3 years ago
What is this equation? Solve for X-2/7=5/7
Anna [14]
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3 years ago
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Given the Arithmetic series A 1 + A 2 + A 3 + A 4 A1+A2+A3+A4 14 + 18 + 22 + 26 + . . . + 86 What is the value of sum?
postnew [5]

Answer:

950

Step-by-step explanation:

The common difference is 4, so the general term can be written:

... an = 14 + 4(n -1)

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... 18 = n -1 . . . . . . . . . . . divide by 4

... 19 = n . . . . . . . . . . . . . add 1

Your series has 19 terms. The first term is 14 and the last is 86, so the average term is (14+86)/2 = 50. Since there are 19 terms, the sum of them is ...

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7 0
3 years ago
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alina1380 [7]
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3 years ago
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stiks02 [169]

Answer:

What is the question tho?

Step-by-step explanation:

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3 years ago
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