(a-1)=4

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Solution for (a-1)=4 equation: 



(a-1)=4

We move all terms to the left:

(a-1)-(4)=0

We get rid of parentheses

a-1-4=0

We add all the numbers together, and all the variables

a-5=0

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

a=5

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