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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

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

We get rid of parentheses

-2a-a+4+2+3=0

We add all the numbers together, and all the variables

-3a+9=0

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

-3a=-9

a=-9/-3

a=+3

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