142=a+78

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Solution for 142=a+78 equation: 



142=a+78

We move all terms to the left:

142-(a+78)=0

We get rid of parentheses

-a-78+142=0

We add all the numbers together, and all the variables

-1a+64=0

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

-a=-64

a=-64/-1

a=+64

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