X-y=3 x-2y=0 values for x and y?

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Answer 1 · 2018-03-23T17:04:37

#x=6, y=3#

We have,

#x-y-3=0..(1) and x-2y=0...(2)#

Subtract the two equations

#(x-y-3)-(x-2y)=0#

#=>cancel(x)-y-3-cancel(x)+2y=0#

#=>y-3=0#

#=>y=3#

Substitute y=3 in 2nd equation

#x-2(3)=0#

#=>x-6=0#

#=>x=6#

Answer 2 · 2018-03-23T17:24:57

#x=6and y=3#

There are several method to solve the equation. It depends upon your standard in which you study .

Here,

#x-y=3....to (1)#

#x-2y=0..to(2)#

From equn,(2),we get ,

#x=2y.....to(3)#

Taking #x=2y# in equn.(1)

#2y-y=3=>y=3#

We put y=3 in equn,(3)

#x=2(3)=6#

Hence,

#x=6and y=3#