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Question

Solve for x and y:

x+y=3,4x3y=26.

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Solution

x+y=3.........(i)

4x3y=26........(ii)

Multiply by 3 in the equation. (i) and then added with the equation. (ii)

3x+3y=9

4x3y=26

By adding them we find

7x=35

x=357=5

x=5

Put the value of x in the equation (i)

x+y=3

5+y=3

y=35=2

y=2


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