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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

2a-3a+4+1=0

We add all the numbers together, and all the variables

-1a+5=0

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

-a=-5

a=-5/-1

a=+5

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