-1a+130=4+105

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Solution for -1a+130=4+105 equation: 



-1a+130=4+105

We move all terms to the left:

-1a+130-(4+105)=0

We add all the numbers together, and all the variables

-1a+130-109=0

We add all the numbers together, and all the variables

-1a+21=0

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

-a=-21

a=-21/-1

a=+21

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