A number consists of two digits whose sum is 4. If 18 is subtracted from the number, the digits are reversed.
Find the number.
Answers
Answered by
1
Step-by-step explanation:
x+y=4
10x+y -18=10y+x
9x-9y=18
x-y=2
given is x+y=4
2x=6,x=3
y=1
given number is 10x+y=31
Similar questions