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Question

Solve for x and y:

2x+3y=0,3x+4y=5.

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Solution

2x+3y=0-----(1)

3x+4y=5-----(2)

From equation (1)

2x+3y=0

2x=3y

x=3y2......(3)

Put the value of x in (2)

3x+4y=5

3(3y2)+4y=5

9y2+4y=5

9y2+8y2=5

1y=10

y=10

sub y in 1

2x+3y=0

2x+3(10)=0

2x30=0

x=302=15

So x=15 and y=10


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