7a-3=291

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Solution for 7a-3=291 equation: 



7a-3=291

We move all terms to the left:

7a-3-(291)=0

We add all the numbers together, and all the variables

7a-294=0

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

7a=294

a=294/7

a=42

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