the sum of the digits of a two-digit number is 15. the unit digit is one less than the tens digit. find the number. let x be the tens digit. show the equation!

x = tens digit

y = units digit

x + y = 13

x = y -1

Substitute the second equation into the first to get

y - 1 + y = 13

2y = 14

y = 7

x = y - 1

x = 7 - 1 = 6

67 is the two digit number.

3x3 = 9 and 2x2 = 4

step-by-step explanation:

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)