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weeeeeb [17]
2 years ago
10

Statement 4x = 7x - 21 Reason ?

Mathematics
2 answers:
denpristay [2]2 years ago
4 0

Answer:

solution;

21=7x-4x

21=3x

21x/3x

Then finalay aneswer is 7x

bagirrra123 [75]2 years ago
3 0
4x = 7x -21
4x - 7x = -21
-3x = -21
X = 7

Check your work for your reason
4(7) = 7 (7) -21
28 = 49-21
28 = 28
They equal
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Answer:

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Irina18 [472]

Answer:

See explanation

Step-by-step explanation:

Required

The average

The data whose average is to be calculated are not given.

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Assume the data is:

1287\ 1215\ 1221\ 1229

This means that the number of schools is 4

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miskamm [114]
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