2(4+a)=12

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Solution for 2(4+a)=12 equation: 



2(4+a)=12

We move all terms to the left:

2(4+a)-(12)=0

We add all the numbers together, and all the variables

2(a+4)-12=0

We multiply parentheses

2a+8-12=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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