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700a+1200*1000=1.000.000
We move all terms to the left:
700a+1200*1000-(1.000.000)=0
We add all the numbers together, and all the variables
700a+1200*1000-0=0
We add all the numbers together, and all the variables
700a+1200000=0
We move all terms containing a to the left, all other terms to the right
700a=-1200000
a=-1200000/700
a=-1714+2/7
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