plzz answer this question its urgent
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Answer:
Step-by-step explanation:
Let tens digit is X
.......Unit digit is Y
Now the number is 10X+Y
According to the question
8×(X+Y) -5 = (10X+Y)
8X +8Y-5=10X+Y
2X-7Y=-5......(1)
&
16×(X-Y)+3= 10X+Y
16X-16Y+3=10X+Y
6X-17Y=-3.............(2)
Subtracting equation (1) from (2)
6X-17Y=-3........×1
2X-7Y=-5..........×3
6X-17Y=-3
6X-21Y=-15
-. +. +
4Y=12
Y=3
Putting value of Y in equation 1
2X-7Y=-5
2X-7×3 =-5
2X=-5+21
2X= 16
X=8
So the number is (10×8 + 3 )=83
8+3=11,. 11×8=88 ,,88-5=83
8-3=5,,,,,,5×16=80,,,,80+3=83
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