Barbara borrowed $5,000 from the bank at 12% simple interest for 3 years. What was the total amount that she paid back?

365

Step-by-step explanation:

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Answer Step by Step:

Move all terms not containing |-9-2x| to the right side of the equation.

|-9-2x| = 11

Remove the absolute value term. This creates a ±  on the right side of the equation because |x| = ±x.

-9-2x=±11

Set up the positive portion of the ± solution.

-9-2x=11

Solve the first equation for x.

x = -10

Set up the negative portion of the ± solution.

-9-2x=-11

Solve the second equation for x.

x = 1

(Answer)  x = -10,1