11-30=-a-9

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Solution for 11-30=-a-9 equation: 



11-30=-a-9

We move all terms to the left:

11-30-(-a-9)=0

We add all the numbers together, and all the variables

-(-1a-9)+11-30=0

We add all the numbers together, and all the variables

-(-1a-9)-19=0

We get rid of parentheses

1a+9-19=0

We add all the numbers together, and all the variables

a-10=0

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

a=10

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