a two digit number is 3 more than 4 times the sum of its digits . if 18 is added to the number , its digits are reversed . find the number
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let the number be 10x+y
10x+y-4(x+y)=3
10x+y-4x-4y=3
6x-3y=3
2x-y=1
and also 10x+y+18=10y+x
9x-9y=-18
x-y=-2
on solving we get x=3 and y=5
show the number is 35
10x+y-4(x+y)=3
10x+y-4x-4y=3
6x-3y=3
2x-y=1
and also 10x+y+18=10y+x
9x-9y=-18
x-y=-2
on solving we get x=3 and y=5
show the number is 35
Aayushh:
how to solve further
i mean how we get 3 and 5
10×3+5
how we get value of x any 3 and 5 respectively
Answered by
0
Answer:
let the number be 10x+y
explanation:
10x+y-4(x+y)=3
10x+y-4x-4y=3
6x-3y=3
2x-y=1
and also 10x+y+18=10y+x
9x-9y=-18
x-y=-2
on solving we get x=3 and y=5
show the number is 35
TERE AISI KI TAISI
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