11(a+12)=231

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Solution for 11(a+12)=231 equation: 



11(a+12)=231

We move all terms to the left:

11(a+12)-(231)=0

We multiply parentheses

11a+132-231=0

We add all the numbers together, and all the variables

11a-99=0

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

11a=99

a=99/11

a=9

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