18 - (-f) = 91
Subtracting a negative value changes to addition:
18 + f = 91
Subtract 18 from both sides:
F = 73
B and C because both bases are squares
Answer: K = -14
Step-by-step explanation: solve for k by simplifying both sides of the equation then isolating the variable
Y = 3x + 5 because the slope is 3/1 and 0 = 5