X2-5x+4=x2-1

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Solution for X2-5x+4=x2-1 equation: 



X2-5X+4=X2-1

We move all terms to the left:

X2-5X+4-(X2-1)=0

We add all the numbers together, and all the variables

-(+X^2-1)+X2-5X+4=0

We add all the numbers together, and all the variables

X^2-(+X^2-1)-5X+4=0

We get rid of parentheses

X^2-X^2-5X+1+4=0

We add all the numbers together, and all the variables

-5X+5=0

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

-5X=-5

X=-5/-5

X=1

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