How do you solve abs(2+2b)+1=3?

1 Answer
Jan 8, 2017

b= 0" and "b=-2

Explanation:

Suppose we had :" "A+1=3

Then A=2

Set A=|2+2b| =2

This means that |2+2b|=|+-2| =2 as whatever is inside the | | is considered as positive in the answer.

Set color(blue)(2+2b=+2)color(red)( => b=0)

Set color(blue)(2+2b=-2)" "color(green)( =>" " 2b=-2-2)" " color(red)(=> b=-4/2=-2)