4(a+2)+2a=80

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Solution for 4(a+2)+2a=80 equation: 



4(a+2)+2a=80

We move all terms to the left:

4(a+2)+2a-(80)=0

We add all the numbers together, and all the variables

2a+4(a+2)-80=0

We multiply parentheses

2a+4a+8-80=0

We add all the numbers together, and all the variables

6a-72=0

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

6a=72

a=72/6

a=12

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