How do you solve #|1 - 4t| = 9#?

Question

1470 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-09-02T07:34:26

#t= 5/2" or "t=-2#

Consider: #|-9|=9" and "|+9|=9#

So the conditions we are testing for is #1-4t=+-9#

Suppose #1-4t=9#

#=>4t=1-9#

#4t=-8#

#t=-2#

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Suppose #1-4t=-9#

#4t=1+9#

#t=10/4 = 5/2#