Question

solve the system of equation X - 2y = 0, 3 X + 4 y = 20
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Answer 1

Answer:

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Step-by-step explanation:

Given the equations

x−2y=0

or, x=2y.......(1).

And

3x+4y=20......(2).

Now, using values of x in (2) we get,

10y=20

or, y=2.

Then x=4.

So, solutions is x=4,y=2.

Answer 2

x-2y=0------------(1)

3x+4y=20--------–(2)

equ.(1) X 2

2x-4y=0

eq((2)+(3))=5x=20hence x=4. and similarly y=2