49-2a=72-78

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Solution for 49-2a=72-78 equation: 



49-2a=72-78

We move all terms to the left:

49-2a-(72-78)=0

We add all the numbers together, and all the variables

-2a+49-(-6)=0

We add all the numbers together, and all the variables

-2a+55=0

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

-2a=-55

a=-55/-2

a=27+1/2

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