,

Replace the function designators with the actual functions in .

Combine the opposite terms in .

Subtract from .

Add and .

Add and .

Find the Sum f(x)=x+6 , g(x)=x-6

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# Find the Sum f(x)=x+6 , g(x)=x-6

,

Replace the function designators with the actual functions in .

Combine the opposite terms in .

Subtract from .

Add and .

Add and .

Find the Sum f(x)=x+6 , g(x)=x-6