Answer:
f=3
Step-by-step explanation:
3f-12=-3, FIrst add 12 to both sides
3f-12+12=-3+12
3f=9, Next divide both sides by 3
3f/3=9/3
f=3; f is three.
f = 3
equation:
3f -12 = -3
isolate 3f by adding 12 to both sides of the equation:
3f = 9
divide both sides of the equation by 3 to get find f:
