Question

Linear equation in ONE VARIABLE.
Sum of the digit of a two digit no. Is 10. The no. Obtained by interchanging the digits is two less than thrice the original no. Find the original no.

P.S. it’s a linear equation in one variable so don’t try with two variable
Cheers,
Fantom l.

Answer 1

Let ten’s place digit be x
So, unit’s place digit=10-x
Original no.=10x+10-x=9x+10
New no.=100-10x+x=100-9x
According to the question,
3(9x+10)-2=100-9x
27x+30-2=100-9x
27x+9x=100-28
36x=72
X=2
So original no.=28

Answer 2

Answer:

x = 2

Step-by-step explanation:

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