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kompoz [17]
3 years ago
5

Two times a number plus four is 22. What is the number

Mathematics
2 answers:
Artist 52 [7]3 years ago
8 0
2n + 4 = 22
      -4   -4
    2n = 18
   n=9
LiRa [457]3 years ago
4 0
Use the expression to solve for the number.

2n + 4 = 22
2n = 22 - 4
2n = 18
n = 18/2
n = 9

The number is 9.

Hope this helps :)
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3 years ago
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Ulleksa [173]
First one:

you can add -10m and -13m but you can't add -10m and 2m^4 becuase the powers aren't the same so

when adding the like terms
look at the:
powers, (x^3 adds with x^3)
placehloder letter (x adds with x and y adds with y and so on)

-10m+2m^4-13m-20m^4
powers: m^1 and M^4
placeholders: all m


add
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second one:
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8 0
3 years ago
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That would be 8. 1/4 goes into 1 4 times so it goes into 2 8 times.
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3 years ago
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