A diagram is shown.
P.
R
(3x - 4)º
M
(x + 6)
F
T
E

Answer:
x = 22°
Step-by-step explanation:
∠RFT = ∠MFE because they are vertical angles
∠RFT = (x + 6)°
(3x - 4)° + (x + 6)° = 90°
combine like terms:
4x + 2° = 90°
4x = 88°
x = 22°