Solve for the variable. You may use the hangers to help you.
40 = 2f + 12
f
f
40
12

Answer:
i don't know what the hangers are for but the calculation is given below
Step-by-step explanation:
40 = 2f + 12
40 - 12 = 2f
28 = 2f
28/2 = f
14 = f
therefore f = 14