11T over 28 - T over 4=1

11T/28-T / 4 = 1

rewrite problem
11T/28 - T * 1/4 = 1
11T/(4(28 - t)) = 1
11T/(112 - 4T) = 1
11T = 112 - 4T
15T = 112
T = 7.47