Question

Plesee telll me solution q-19



I mark brainlist
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Answer 1

x+y=8 first equation


(10x+y)-(10y+x)=18
9x-9y=18
9 will common out
x-y=2 second equation


x+y=8
x-y=2

2x=10
x=5 (put in eq 1)
5+y=8
y=8-5
y=3
x=5 and y=3

the number 10x+y
10*5+3=53