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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Let ten's digit be x and unit's digit be y.
So , number = 10x + y.
According to condition,
10x + y - 3 = 4(x+y).
10x+y-3=4x+4y.
6x-3y=3 ___ eq 1.
According to question,
10x+y+18=10y+x.
9x-9y= -18____ eq 2.
Multiplying eq 1 by 3.
18x - 9y = 9______eq 3.
Subtracting eq 2 from eq 3.
9x = 27.
x = 3.
Substituting value of x in eq 1.
18 - 3y = 3.
-3y = -15.
y = 3.