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

1 Answer
Tony B
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)#

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