12+a=-

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Solution for 12+a=- equation:



12+a=-
We move all terms to the left:
12+a-(-)=0
We add all the numbers together, and all the variables
a+12-0=0
We add all the numbers together, and all the variables
a+12=0
We move all terms containing a to the left, all other terms to the right
a=-12

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