a #whose digits a sum 15 and a diff. of 1 the # is not 8 less than 95?

Answer 1

Two equations with two unknowns

t+d = 15
t-d = 1

or

t+d = 15
t-d = -1

One of systems results in 87, which is prohibited by the problem statement. Therefore the other answer, 78, is the correct one

Answer 2

78

Answer 3

78

Answer 4

78