-2a+9=25

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Solution for -2a+9=25 equation: 



-2a+9=25

We move all terms to the left:

-2a+9-(25)=0

We add all the numbers together, and all the variables

-2a-16=0

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

-2a=16

a=16/-2

a=-8

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