4=2x+-1

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Solution for 4=2x+-1 equation: 



4=2x+-1

We move all terms to the left:

4-(2x+-1)=0

We add all the numbers together, and all the variables

-(2x-1)+4=0

We get rid of parentheses

-2x+1+4=0

We add all the numbers together, and all the variables

-2x+5=0

We move all terms containing x to the left, all other terms to the right

-2x=-5

x=-5/-2

x=2+1/2

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