How

X -2Y = 4         ——-( i ) 

2X – 4Y = 10    ——– ( ii )

From ( i )

X – 2Y = 4

X = 4 + 2Y      ———-( iii )

And from ( ii )

2X – 4Y = 10

2X = 10 + 4Y

X = 10 + 4Y/2

X = 5 + 2Y  ——— ( iv )

From (iii) and (iv)

4 + 2Y = 5 + 2Y

4 + 2Y – 2Y = 5

4 = 5

howwwwwww !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

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