2(a-)2=2a-4

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Solution for 2(a-)2=2a-4 equation: 



2(a-)2=2a-4

We move all terms to the left:

2(a-)2-(2a-4)=0

We add all the numbers together, and all the variables

2(+a)2-(2a-4)=0

We multiply parentheses

4a-(2a-4)=0

We get rid of parentheses

4a-2a+4=0

We add all the numbers together, and all the variables

2a+4=0

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

2a=-4

a=-4/2

a=-2

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