2a-2(3a+5)=18

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Solution for 2a-2(3a+5)=18 equation: 



2a-2(3a+5)=18

We move all terms to the left:

2a-2(3a+5)-(18)=0

We multiply parentheses

2a-6a-10-18=0

We add all the numbers together, and all the variables

-4a-28=0

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

-4a=28

a=28/-4

a=-7

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