mariateresa mariateresa

01-11-2017
Mathematics

contestada

How do I solve this?

How do I solve this class=

Respuesta :

mathstudent55 mathstudent55

01-11-2017

First, you isolate the absolute value.

4 + 8|2b| = 84

8|2b| = 80

|2b| = 10

Now to solve the absolute value part, set what is inside the absolute value equal to 10 and set it equal to -10 and solve both equations.

2b = 10 or 2b = -10

b = 5 or b = -5

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