4a-2(a+9)=6=

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Solution for 4a-2(a+9)=6= equation: 



4a-2(a+9)=6=

We move all terms to the left:

4a-2(a+9)-(6)=0

We multiply parentheses

4a-2a-18-6=0

We add all the numbers together, and all the variables

2a-24=0

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

2a=24

a=24/2

a=12

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