Answer Posted / etty

xy-x+2y = 6

y(x-x)+2y = 6
y+2y = 6
3y=6
y=2

now place the value of y in the same equation

xy-x+2y = 6
x*2-x+2*2 = 6
2x-x+4 = 6
x+4 = 6
x = 6-4
x = 2

so xy=c
2*2=c
c=4 and 4 is the ans

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