2(8-a)-1=2(a-6)-9

Solution for 2(8-a)-1=2(a-6)-9 equation:

2(8-a)-1=2(a-6)-9

We move all terms to the left:

2(8-a)-1-(2(a-6)-9)=0

We add all the numbers together, and all the variables

2(-1a+8)-(2(a-6)-9)-1=0

We multiply parentheses

-2a-(2(a-6)-9)+16-1=0


We calculate terms in parentheses: -(2(a-6)-9), so:

2(a-6)-9

We multiply parentheses

2a-12-9

We add all the numbers together, and all the variables

2a-21

Back to the equation:

-(2a-21)


We add all the numbers together, and all the variables

-2a-(2a-21)+15=0

We get rid of parentheses

-2a-2a+21+15=0

We add all the numbers together, and all the variables

-4a+36=0

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

-4a=-36

a=-36/-4

a=+9