-(7+a)+8(1+8a)=66

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Solution for -(7+a)+8(1+8a)=66 equation: 



-(7+a)+8(1+8a)=66

We move all terms to the left:

-(7+a)+8(1+8a)-(66)=0

We add all the numbers together, and all the variables

-(a+7)+8(8a+1)-66=0

We multiply parentheses

-(a+7)+64a+8-66=0

We get rid of parentheses

-a+64a-7+8-66=0

We add all the numbers together, and all the variables

63a-65=0

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

63a=65

a=65/63

a=1+2/63

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