How do you solve #18f=-216#?

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Answer 1 · 2017-03-01T15:15:48

See the entire solution process below:

Divide each side of the equation by #color(red)(18)# to solve for #f# while keeping the equation balanced:

#(18f)/color(red)(18) = -216/color(red)(18)#

#(color(red)(cancel(color(black)(18)))f)/cancel(color(red)(18)) = -12#

#f = -12#

Answer 2 · 2017-03-01T15:17:49

#f=-12#

#18f = -216#

divide both sides of the equation by 18

#(18f)/color(green)18 = -216/color(green)18#

18/18 = 1, so we can simplify

#1f= f = -216/18#

Then divide it out to get the final answer

#f=-12#