Question

If 11x + 4y=33, 4x+11y=12 then 3x +3y =?​

Answer 1

Answer:

$11x + 4y = 33 \: \: - - - - (1)$

$4x + 11y = 12 \: - - - - (2)$

adding equation number 1 and 2

$15x + 15y = 45$

dividing both side by 5

$3x + 3y = 3$

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Answer 2

Answer:

11x + 4y=33 -------------------(1)

4x+11y=12 -------------------(2)

Adding (1) & (2)

15x + 15y = 45

Therefore,

3x + 3y = 9

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