Question #8c8ef

1 Answer
Anthony R.
Jan 18, 2018

#f=-36#

Explanation:

Begin by subtracting #7# from both sides:

#f/-3+7color(red)(-7)=19color(red)(-7)#

#f/-3+0=12#

#f/-3=12#

Multiply both sides by #-3#

#cancelcolor(red)(-3)color(red)timesf/cancel(-3)=12color(red)(times-3)#

#f=-36#

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