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emmainna [20.7K]
2 years ago
11

12x +7 < −11 OR 5x −8 > 40

Mathematics
1 answer:
r-ruslan [8.4K]2 years ago
3 0

For this case we must resolve each of the inequalities and find the solution set.

Inequality 1:

12x + 7

We subtract 7 from both sides of the inequality:

12x

We divide between 12 on both sides of the inequality:

x

Thus, the solution is given by all values of x less than- \frac {3} {2}.

Inequality 2:

5x-8> 40

We add 8 to both sides of the inequality:

5x> 40 + 8\\5x> 48

We divide between 5 on both sides of the inequality:

x> \frac {48} {5}

Thus, the solution is given by all values of x greater than\frac {48} {5}.

The solution set is given by:

(-∞, - \frac {3} {2}) U (\frac {48} {5},∞)

Answer:

(-∞, - \frac {3} {2}) U (\frac {48} {5},∞)

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