50-3a=7a

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Solution for 50-3a=7a equation: 



50-3a=7a

We move all terms to the left:

50-3a-(7a)=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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