(3a-15)+19=-2

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Solution for (3a-15)+19=-2 equation: 



(3a-15)+19=-2

We move all terms to the left:

(3a-15)+19-(-2)=0

We add all the numbers together, and all the variables

(3a-15)+21=0

We get rid of parentheses

3a-15+21=0

We add all the numbers together, and all the variables

3a+6=0

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

3a=-6

a=-6/3

a=-2

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