-a-19a+9a+19-10a-10=12

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Solution for -a-19a+9a+19-10a-10=12 equation:


-a-19a+9a+19-10a-10=12

We simplify the equation to the form, which is simple to understand 
-a-19a+9a+19-10a-10=12

We move all terms containing a to the left and all other terms to the right. 
-1a-19a+9a-10a=+12-19+10

We simplify left and right side of the equation. 
-21a=+3

We divide both sides of the equation by -21 to get a. 
a=-0.142857142857

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