Hi

x+7=10     |Subtracting 7 from both sides of the equation

  x = 3

x+14=25     |Subtracting 14 from both sides of the equation  

  x = 11

x-2= -4      |Adding 2 to both sides of the equation

  x = -2

3+x= -11     |Subtracting 3 from both sides of the equation

  x = -14

1/3+f=3/4     |Subtracting 1/3 from both sides of the equation

   f = 3/4-1/3 = 9/12 - 4/12 = 5/1

solving always is the result of isolating the variable on one side of the equation 

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