Does anyone know the standard way of solving mods
\[\huge \left| 2x-1 \right| - \left| x+2 \right| -\left| x+1 \right| = 50\]
I have a feeling you just troll people on here, after seeing all your questions asked.. IMO
I am serious not trolling
I would believe you once I see a picture of the question from a book.
Does anyone know how to solve this?
What are you talking about??
where do you get these questions from? What is your source?
I create my own questions
Bye.
@dan815 do you know?
@iambatman
No solutions
\[-|x+1|=50+|x+2|-|2x-1|\] \[x+1=-50-|x+2|+|2x-1| ~~~~or ~~~~ x+1=50+|x+2|-|2x-1|\] Eliminate the absolute values, etc, etc, etc. It's just like the problem you had yesterday, do you see where this is going...?
No , I suppose we make a number line and plot them after each inerval either a mod would be positive or negative i don't know how to do that
\[|x+2|=-51-x+|2x-1| ~~~ or ~~~ x+1 =50+|x+2|-|2x-1|\] \[x+2=-51-x+|2x-1| ~~~ or ~~~ x+2=51+x-|2x-1|\] \[53+2x-|2x-1|=0 ~~~ or ~~~ x+2=51+x-|2x-1|\] \[or~~~x+1=50+|x+2|-|2x-1|\] Now we isolate all the terms with |2x-1| to the left side, then multiply both sides by a constant. \[|2x-1|=2x+53 ~~~ or ~~~x+2=51+x-|2x-1| ~~~ or\] \[x+1=50+|x+2|-|2x-1|\] once again eliminate the absolute value \[2x-1=2x+53 ~~~ or ~~~ 2x-1 = -53-2x ~~~ or x+1=50+|x+2|-|2x-1| ~~~ or\] \[x+2=51+x-|2x-1|\] After that all you have to do is isolate x for each expression, and look for a trivial solution. If you do that you get no real solutions.
Oh nice , thanks
Np
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