-6-(a+9)+7=3a+2(4a-1)

Solution for -6-(a+9)+7=3a+2(4a-1) equation:

-6-(a+9)+7=3a+2(4a-1)

We move all terms to the left:

-6-(a+9)+7-(3a+2(4a-1))=0

We add all the numbers together, and all the variables

-(a+9)-(3a+2(4a-1))+1=0

We get rid of parentheses

-a-(3a+2(4a-1))-9+1=0


We calculate terms in parentheses: -(3a+2(4a-1)), so:

3a+2(4a-1)

We multiply parentheses

3a+8a-2

We add all the numbers together, and all the variables

11a-2

Back to the equation:

-(11a-2)


We add all the numbers together, and all the variables

-1a-(11a-2)-8=0

We get rid of parentheses

-1a-11a+2-8=0

We add all the numbers together, and all the variables

-12a-6=0

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

-12a=6

a=6/-12

a=-1/2