11a+9=42

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Solution for 11a+9=42 equation: 



11a+9=42

We move all terms to the left:

11a+9-(42)=0

We add all the numbers together, and all the variables

11a-33=0

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

11a=33

a=33/11

a=3

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