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2x + 7 = 3
2x = 3 - 7
2x = -5
x = -5/2
hey user

the answer to this is going to be 
we do this math 

2x + 7 = 3
and then
2x = 3 - 7
then 
2x = -5
and we get

x = -5/2

hope l helped 

have a good day