2.5(1a-1)=-1

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Solution for 2.5(1a-1)=-1 equation: 



2.5(1a-1)=-1

We move all terms to the left:

2.5(1a-1)-(-1)=0

We add all the numbers together, and all the variables

2.5(a-1)-(-1)=0

We add all the numbers together, and all the variables

2.5(a-1)+1=0

We multiply parentheses

2.5a-2.5+1=0

We add all the numbers together, and all the variables

2.5a-1.5=0

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

2.5a=1.5

a=1.5/2.5

a=1/1.6666666666667

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