f(7)=2(7)-4

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Solution for f(7)=2(7)-4 equation: 



f(7)=2(7)-4

We move all terms to the left:

f(7)-(2(7)-4)=0

We add all the numbers together, and all the variables

f7-23=0

We add all the numbers together, and all the variables

f^7-23=0

We do not support efpression: f^7

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