Patrick L. answered 10/02/20
Tutor
4.8
(58)
AA in Mathematics with 7+ Years of Tutoring Experience
Addition Postulate:
ST + TU = SU
9x + 2 + 12 = 11x + 8
9x + 14 = 11x + 8
6 = 2x
3 = x
SU = 11(3) + 8 = 33 + 8 = 41