a-(-5-2a)=7(a-1)-2

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Solution for a-(-5-2a)=7(a-1)-2 equation: 



a-(-5-2a)=7(a-1)-2

We move all terms to the left:

a-(-5-2a)-(7(a-1)-2)=0

We add all the numbers together, and all the variables

a-(-2a-5)-(7(a-1)-2)=0

We get rid of parentheses

a+2a-(7(a-1)-2)+5=0



We calculate terms in parentheses: -(7(a-1)-2), so:

7(a-1)-2

We multiply parentheses

7a-7-2

We add all the numbers together, and all the variables

7a-9

Back to the equation:

-(7a-9)



We add all the numbers together, and all the variables

3a-(7a-9)+5=0

We get rid of parentheses

3a-7a+9+5=0

We add all the numbers together, and all the variables

-4a+14=0

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

-4a=-14

a=-14/-4

a=3+1/2

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