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4x - 4 < 8 AND 9x + 5 > 23

User Azar
by
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1 Answer

1 vote

Answer:

2<x<3

Explanation:

Solve the system of two inequalities:


\left\{\begin{array}{l}4x-4<8\\9x+5>23\end{array}\right.

First, solve each inequality separately:

1.


4x-4<8\\ \\4x-4+4<8+4\\ \\4x<12\\ \\x<(12)/(4)\\ \\x<3

2.


9x+5>23\\ \\9x+5-5>23-5\\ \\9x>18\\ \\x>(18)/(9)\\ \\x>2

Now, find all x that satisfy both inequalities:


\left\{\begin{array}{l}x<3\\ \\x>2\end{array}\right.\Rightarrow 2<x<3

User Acaz Souza
by
5.8k points