Connect with experts and get insightful answers to your questions on IDNLearn.com. Get the information you need from our community of experts who provide accurate and thorough answers to all your questions.

Solve the inequality and find the correct range for [tex]\( x \)[/tex]:

[tex]\[
\frac{1}{3} x + 1 \frac{2}{3} \ \textless \ -\frac{3}{4} x - \frac{1}{2}
\][/tex]


Sagot :

Sure, let's solve the inequality step by step:

We start with the given inequality:
[tex]\[ \frac{1}{3} x + \frac{5}{3} < -\frac{3}{4} x - \frac{1}{2} \][/tex]

First, we want to clear the fractions by finding a common multiple. In this case, the least common multiple (LCM) of the denominators (3 and 4) is 12. We multiply each term by 12:

[tex]\[ 12 \cdot \left( \frac{1}{3}x \right) + 12 \cdot \left( \frac{5}{3} \right) < 12 \cdot \left( -\frac{3}{4}x \right) + 12 \cdot \left( -\frac{1}{2} \right) \][/tex]

This simplifies to:

[tex]\[ 4x + 20 < -9x - 6 \][/tex]

Next, we want to isolate [tex]\( x \)[/tex]. Begin by getting all terms involving [tex]\( x \)[/tex] on one side of the inequality and the constant terms on the other side. To do this, add [tex]\( 9x \)[/tex] to both sides:

[tex]\[ 4x + 9x + 20 < -9x + 9x - 6 \][/tex]

This simplifies to:

[tex]\[ 13x + 20 < -6 \][/tex]

Now, isolate [tex]\( x \)[/tex] by subtracting 20 from both sides:

[tex]\[ 13x + 20 - 20 < -6 - 20 \][/tex]

This simplifies to:

[tex]\[ 13x < -26 \][/tex]

Now, solve for [tex]\( x \)[/tex] by dividing both sides by 13:

[tex]\[ x < -2 \][/tex]

Hence, the solution to the inequality [tex]\(\frac{1}{3} x+ \frac{5}{3} < -\frac{3}{4} x-\frac{1}{2}\)[/tex] is:

[tex]\[ x < -2 \][/tex]

In interval notation, this means:

[tex]\[ (-\infty, -2) \][/tex]