9a+57=14a+42

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Solution for 9a+57=14a+42 equation: 



9a+57=14a+42

We move all terms to the left:

9a+57-(14a+42)=0

We get rid of parentheses

9a-14a-42+57=0

We add all the numbers together, and all the variables

-5a+15=0

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

-5a=-15

a=-15/-5

a=+3

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