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nadezda [96]
3 years ago
6

Solve for all values of x in simplest form. 9-4|3+5x|=5

Mathematics
2 answers:
ozzi3 years ago
6 0

Answer:

x = -2/5                  x = -4/5

Step-by-step explanation:

9-4|3+5x|=5

Subtract 9 from each side

9-9-4|3+5x|=5-9

-4|3+5x|=-4

Divide by -4

-4/-4 |3+5x|=-4/-4

|3+5x|=1

The solution to an absolute value is positive and negative

3+5x =1            3+5x = -1

Subtract 3 from each side

5x = 1-3             5x = -1-3

5x = -2               5x = -4

Divide by 5

5x/5 = -2/5           5x/5 = -4/5

x = -2/5                  x = -4/5

Zinaida [17]3 years ago
5 0

Answer:

x=-2/5\text{ or } x=-4/5

Step-by-step explanation:

So we have the equation:

9-4|3+5x|=5

First, subtract 9 from both sides:

-4|3+5x|=-4

Divide both sides by -4:

|3+5x|=1

Definition of Absolute Value:

3+5x=1\text{ or } 3+5x=-1

Subtract 3 from both sides:

5x=-2\text{ or } 5x=-4

Divide both sides by 5:

x=-2/5\text{ or } x=-4/5

And we're done!

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