43-10a=-1247

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Solution for 43-10a=-1247 equation: 



43-10a=-1247

We move all terms to the left:

43-10a-(-1247)=0

We add all the numbers together, and all the variables

-10a+1290=0

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

-10a=-1290

a=-1290/-10

a=+129

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