25=20a-900

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Solution for 25=20a-900 equation: 



25=20a-900

We move all terms to the left:

25-(20a-900)=0

We get rid of parentheses

-20a+900+25=0

We add all the numbers together, and all the variables

-20a+925=0

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

-20a=-925

a=-925/-20

a=46+1/4

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