PLEASE HELP ASAP!! There is a two-digit number whose units digit is six less than the tens digit. Four times the tens digit plus five times the units digit equal 51. Find the digits.

Respuesta :

X-6= units digits
X= tens digit

4(x)+5(x-6)=51
9x-30=51
9x=81, x=9

Plug x back into top equation:
9-6=3, units digit is 3
X=9, tens digit is 9
The two digit number =93