-5a-5a=28-78

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Solution for -5a-5a=28-78 equation: 



-5a-5a=28-78

We move all terms to the left:

-5a-5a-(28-78)=0

We add all the numbers together, and all the variables

-5a-5a-(-50)=0

We add all the numbers together, and all the variables

-10a+50=0

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

-10a=-50

a=-50/-10

a=+5

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