2(a-3)=-2a-2(-3a-9)

Solution for 2(a-3)=-2a-2(-3a-9) equation:

2(a-3)=-2a-2(-3a-9)

We move all terms to the left:

2(a-3)-(-2a-2(-3a-9))=0

We multiply parentheses

2a-(-2a-2(-3a-9))-6=0


We calculate terms in parentheses: -(-2a-2(-3a-9)), so:

-2a-2(-3a-9)

We multiply parentheses

-2a+6a+18

We add all the numbers together, and all the variables

4a+18

Back to the equation:

-(4a+18)


We get rid of parentheses

2a-4a-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