Usually, "simplify" means to remove any common factors and express the sum as a single fraction, often in multiplie-out form.
If you factor what you've got, you will write it as
Solve for x:
x + 2 = −4
x
+
2
=
−
4
x = −2
x = −2
x = −6
x = −6
x = 6
x = 6
x = 2
Yes it is true that a small deviation means the data set tended to cluster around the mean .
The value of 4 in 34 258 is 4000 - four thousand.
The value of 4 on 47614 is 40 000 - forty thousand.
The first is10 times less than the second and the second is ten times more than the first:
4000*10=40000
You can also say that the first is 0.1 times the second.
A= 8
Because
25 : 5
40 : a?
Cross multiplication
200 : 25a
Divide both sides by 25
You will get 8!
Hope this helps
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