20+2a+-4a=10

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Solution for 20+2a+-4a=10 equation: 



20+2a+-4a=10

We move all terms to the left:

20+2a+-4a-(10)=0

determiningTheFunctionDomain
2a-4a+20-10+=0

We add all the numbers together, and all the variables

-2a=0

a=0/-2

a=0

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