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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

The number is 35 let the digit at one's place be y and that in 10's place be x so the number is 10x+y given 10x+y=3+4(x+y) ----- 1 and also given 10x+y+18=10y+x ------2 substituting 1 in 2 gives 3+4(x+y)+18=10y+x solving the above equation for x, you should get x=2y-7 ------3 now substitute 3 in 1 10(2y-7)+y=3+4(2y-7+y) solving the above equation for y, you will get 9y=45 which gives y=5 ------4 substitute 4 in 3 and you get x=3 now the number is 10x+y= 10(3) + 5=35 there you go ^_^