7a-1=-50

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Solution for 7a-1=-50 equation: 



7a-1=-50

We move all terms to the left:

7a-1-(-50)=0

We add all the numbers together, and all the variables

7a+49=0

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

7a=-49

a=-49/7

a=-7

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