5(a-1)=4

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Solution for 5(a-1)=4 equation: 



5(a-1)=4

We move all terms to the left:

5(a-1)-(4)=0

We multiply parentheses

5a-5-4=0

We add all the numbers together, and all the variables

5a-9=0

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

5a=9

a=9/5

a=1+4/5

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