f(-5)=8-7(-5)

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Solution for f(-5)=8-7(-5) equation: 



f(-5)=8-7(-5)

We move all terms to the left:

f(-5)-(8-7(-5))=0

We add all the numbers together, and all the variables

f(-5)-43=0

We multiply parentheses

-5f-43=0

We move all terms containing f to the left, all other terms to the right

-5f=43

f=43/-5

f=-8+3/5

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