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

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



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

We move all terms to the left:

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

We multiply parentheses

-2a-(-4(2a+3)-9)+14+9=0



We calculate terms in parentheses: -(-4(2a+3)-9), so:

-4(2a+3)-9

We multiply parentheses

-8a-12-9

We add all the numbers together, and all the variables

-8a-21

Back to the equation:

-(-8a-21)



We add all the numbers together, and all the variables

-2a-(-8a-21)+23=0

We get rid of parentheses

-2a+8a+21+23=0

We add all the numbers together, and all the variables

6a+44=0

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

6a=-44

a=-44/6

a=-7+1/3

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