Respuesta :
If a< c< b then a<c and c<b
Separate the equation into 2 separate ones and solve them:
X-9 < 4x +3
Subtract 3 from both sides:
X-12 < 4x
Subtract x from both sides:
-12< 3x
Divide both sides by 3:
X > -4
4x+3 < 27
Subtract 3 from both sides
4x < 24
Divide both sides by 4
X <6
Combine to get one inequality:
-4<x<6
The Solution of the inequality [tex]x-9 < 4x+3 < 27[/tex] in the form of one inequality is : [tex]-4 < x < 6[/tex]
We have the following inequality with us -> [tex]x - 9 < 4x+3 < 27[/tex]
We have to solve this inequality and the answer should be expressed as one - single inequality.
What is an inequality? Does [tex]a < b < c[/tex] means [tex]a < b[/tex] and [tex]b < c[/tex] ?
Inequality in mathematics is a relation that helps us to compare two or more mathematical expressions. The expressions can be related to each other using the following operators > (greater then), < (less then), ≥ (greater then or equal to), ≤ (less then or equal to). Yes, the inequality [tex]a < b < c[/tex] signifies (or means) that [tex]a < b[/tex] and [tex]b < c[/tex].
[tex]a < b < c \; \;\;means\; \;\;a < b\; \;and\; \;b < c[/tex]
Using the above rule, we can also solve the inequality given to us :[tex]x-9 < 4x +3 < 27[/tex] by separating it into two different inequalities as follows-
[tex]x-9 < 4x+3[/tex] (Inequality 1)
and
[tex]4x + 3 < 27[/tex] (Inequality 2)
Solving the Inequality - 1 :
[tex]x-9 < 4x+3[/tex]
Subtracting [tex]x[/tex] on both sides, we get -
[tex]x-9-x < 4x-x+3\\\\-9 < 3x+3[/tex]
Adding [tex]-3[/tex] on both sides, we get -
[tex]-3-9 < 3x+3-3\\-12 < 3x[/tex]
Dividing both sides by [tex]3[/tex]. we get -
[tex]\frac{-12}{3} < \frac{3x}{3}[/tex]
[tex]x > -4[/tex]
Solving the Inequality - 2 :
[tex]4x+3 < 27[/tex]
Subtracting [tex]3[/tex] from both sides, we get -
[tex]4x+3-3 < 27-3\\4x < 24[/tex]
Dividing both sides by [tex]4\\[/tex]. we get -
[tex]\frac{4x}{4} < \frac{24}{4}[/tex]
[tex]x < 6[/tex]
Now, on solving the above two inequalities, we got the following result -
[tex]x > -4[/tex] and [tex]x < 6[/tex]. Combining both to one inequality, we get -
[tex]-4 < x < 6[/tex]
Hence, the solution for the inequality - [tex]x-9 < 4x+3 < 27[/tex] can be written in one-inequality as -
[tex]-4 < x < 6[/tex]
To solve more questions on finding the solution of linear inequalities, visit the following link -
https://brainly.com/question/17675534
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