Question

A two-digit number is 7 times the sum of its digits. The tens digit is 3 more than the units digit. What is the number?

Answer 1

So I'm thinking our first equation will be: xy=7(x + y)

Answer 2

10x+y=7(x+y)
x=y+3.Now solving them

Answer 3

Oh wait

Answer 4

The number is not xy @algebraprobs it is 10x+y

Answer 5

Oh......oh yeah because it is in the tens place!

Answer 6

Yes @pavankumartgpk is absolutely Right
Sorry about that!@algebraprobs

Answer 7

Now you also have x=y+3 right.So substituting x=2y here gives 2y=y+3 so y=3 and x=6

Answer 8

Number is 63

Answer 9

Thanks! : )