Question

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34. Solve the pair of linear equations
graphically :x-2y = 0 and 3x+4y = 20​

Answer 1

Answer:

x=4

y=2

Step-by-step explanation:

2 equations

• x-2y=0 (multiply with 2)......1
• 3x+4y=20........2
• modifing 1 we get 2x-4y=0.......3

now add

2 and 3

we get x=4

put x=4 in 1 we get y=2

Answer 2

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